Category: 04. Các Widgets cơ bản trong PyQt6

self.datetime_edit = QDateTimeEdit(self, calendarPopup=True)

time = QTime(10, 15, 35)
date = QDate(2024, 1, 1)
self.datetime_edit.setTime(time)
self.datetime_edit.setDate(date)
self.datetime_edit.setDisplayFormat("dd/MM/yyyy HH:mm:ss AP")

date_time=QDateTime(2024,1,1,10,15,35)
self.datetime_edit.setDateTime(date_time)

self.datetime_edit.editingFinished.connect(self.update)

def update(self):
    value = self.datetime_edit.dateTime()
    print(str(value.toPyDateTime()))

self.datetime_edit.dateTimeChanged.connect(self.update)

def update(self):
    value = self.datetime_edit.dateTime()
    print(str(value.toPyDateTime()))

from PyQt6.QtCore import QDateTime, QTime, QDate
from PyQt6.QtWidgets import QApplication, QWidget, QDateTimeEdit, QLabel, QFormLayout


class MainWindow(QWidget):
    def __init__(self):
        super().__init__()

        self.setWindowTitle('PyQt QDateTimeEdit')
        self.setMinimumWidth(200)

        layout = QFormLayout()
        self.setLayout(layout)

        self.datetime_edit = QDateTimeEdit(self, calendarPopup=True)
        time = QTime(10, 15, 35)
        date = QDate(2024, 1, 1)
        self.datetime_edit.setTime(time)
        self.datetime_edit.setDate(date)
        date_time=QDateTime(2024,1,1,10,15,35)
        self.datetime_edit.setDateTime(date_time)
        self.datetime_edit.setDisplayFormat("dd/MM/yyyy HH:mm:ss AP")

        self.datetime_edit.editingFinished.connect(self.update)

        self.datetime_edit.dateTimeChanged.connect(self.update)

        self.result_label = QLabel('', self)

        layout.addRow('Date:', self.datetime_edit)
        layout.addRow(self.result_label)

        self.show()

    def update(self):
        value = self.datetime_edit.dateTime()
        print(str(value.toPyDateTime()))
        self.result_label.setText(value.toString("yyyy-MM-dd HH:mm"))

if __name__ == '__main__':
    app = QApplication([])
    window = MainWindow()
    app.exec()

{
    "categories": [
        {
            "id": 1,
            "name": "Drinking",
            "products": [
                {
                    "id": 1,
                    "name": "Coca",
                    "price": 15,
                    "timetracking": "2023-12-25 14:30:00"
                },
                {
                    "id": 2,
                    "name": "Pepsi",
                    "price": 30,
                    "timetracking": "2023-11-18 4:3:5"
                },
                {
                    "id": 3,
                    "name": "Sting",
                    "price": 20,
                    "timetracking": "2023-12-27 2:4:5"
                }
            ]
        },
        {
            "id": 2,
            "name": "Fast Food",
            "products": [
                {
                    "id": 4,
                    "name": "Hamburger",
                    "price": 70,
                    "timetracking": "2023-12-15 14:23:46"
                },
                {
                    "id": 5,
                    "name": "Sandwich",
                    "price": 80,
                    "timetracking": "2023-12-18 14:13:45"
                },
                {
                    "id": 6,
                    "name": "Cheeseburger",
                    "price": 25,
                    "timetracking": "2023-12-14 15:43:5"
                },
                {
                    "id": 7,
                    "name": "Hot dog",
                    "price": 35,
                    "timetracking": "2023-12-12 12:30:5"
                },
                {
                    "id": 8,
                    "name": "Fried chicken",
                    "price": 68,
                    "timetracking": "2023-12-22 14:13:15"
                },
                {
                    "id": 9,
                    "name": "Baguette",
                    "price": 20,
                    "timetracking": "2023-12-25 8:7:20"
                },
                {
                    "id": 10,
                    "name": "Pretzel",
                    "price": 17,
                    "timetracking": "2023-12-27 9:13:15"
                },
                {
                    "id": 11,
                    "name": "Pizza",
                    "price": 70,
                    "timetracking": "2023-12-26 12:17:15"
                },
                {
                    "id": 12,
                    "name": "Sausage",
                    "price": 65,
                    "timetracking": "2023-12-26 10:08:15"
                },
                {
                    "id": 13,
                    "name": "Bacon",
                    "price": 100,
                    "timetracking": "2023-12-28 12:12:10"
                },
                {
                    "id": 14,
                    "name": "ANIMAL STYLE BURGER",
                    "price": 100,
                    "timetracking": "2023-12-28 12:12:10"
                },
                {
                    "id": 15,
                    "name": "SPICY CHICKEN SANDWICH",
                    "price": 100,
                    "timetracking": "2023-12-28 12:12:10"
                },
                {
                    "id": 16,
                    "name": "BISCUITS POPEYES",
                    "price": 100,
                    "timetracking": "2023-12-28 12:12:10"
                }
            ]
        },
        {
            "id": 3,
            "name": "Fruits",
            "products": [
                {
                    "id": 14,
                    "name": "Orange",
                    "price": 26,
                    "timetracking": "2023-12-25 9:30:0"
                },
                {
                    "id": 15,
                    "name": "Strawberry",
                    "price": 30,
                    "timetracking": "2023-11-18 4:3:5"
                },
                {
                    "id": 16,
                    "name": "Water Melon",
                    "price": 28,
                    "timetracking": "2023-11-15 14:3:5"
                }
            ]
        }
    ]
}

class Product:
    def __init__(self,id,name,price,timetracking):
        self.id=id
        self.name=name
        self.price=price
        self.timetracking=timetracking
    def __str__(self):
        return str(self.id)+"-"+self.name+"("+ str(self.price)+" $)"

from Product import Product

class Category:
    def __init__(self,id,name,products=None):
        self.id=id
        self.name=name
        self.products=products
        if self.products==None:
            self.products=[]
    def item(self,index)->Product:
        return self.products[index]
    def add(self,p):
        self.products.append(p)
    def addAll(self,products):
        for i in range(len(products)):
            p=products[i]
            self.add(p)
    def index(self,p):
        i=self.products.index(p)
        return i
    def update(self,index,p):
        self.products[index]=p
        return self.products[index]
    def removeByIndex(self,index):
        return self.products.pop(index)
    def removeByItem(self,item):
        self.products.remove(item)
    def clear(self):
        self.products.clear()
    def size(self):
        return len(self.products)
    def __str__(self):
        return  str(self.id)+"-"+self.name

from Category import Category
from Product import Product

class Dataset:
    def __init__(self,categories=None):
        if categories==None:
            self.categories=[]
        else:
            self.categories = categories
    def item(self,index)->Category:
        return self.categories[index]
    def add(self,c):
        self.categories.append(c)
    def addAll(self,categories):
        for i in range(len(categories)):
            c=categories[i]
            self.add(c)
    def index(self,c):
        i=self.categories.index(c)
        return i
    def update(self,index,c):
        self.categories[index]=c
        return self.categories[index]
    def removeByIndex(self,index):
        return self.categories.pop(index)
    def removeByItem(self,item):
        self.categories.remove(item)
    def clear(self):
        self.categories.clear()
    def size(self):
        return len(self.categories)
    def printAll(self):
        for i in range(self.size()):
            c=self.item(i)
            print(c)
            for j in range(len(c.products)):
                p=c.products[j]
                print(p)
    def reModel(self):
        categories = []
        for i in range(self.size()):
            dict_c = self.item(i)
            products = []
            for j in range(len(dict_c["products"])):
                dict_p = dict_c["products"][j]
                p = Product(dict_p["id"], dict_p["name"], dict_p["price"],dict_p["timetracking"])
                products.append(p)
            c = Category(dict_c["id"], dict_c["name"], products)
            categories.append(c)
        self.categories=categories

import json
import os

class FileFactory:
    #path: path to serialize array of product
    #arrData: array of Product
    def writeData(self,path,dataObject):
        jsonString = json.dumps(dataObject,default=lambda o: o.__dict__, indent=4)
        jsonFile = open(path, "w")
        jsonFile.write(jsonString)
        jsonFile.close()
    #path: path to deserialize array of Product
    #ClassName: Product
    def readData(self,path,ClassName):
        if os.path.isfile(path) == False:
            return []
        file = open(path, "r")
        jsonstring=file.read()
        # Reading from file
        ds =  ClassName(**json.loads(jsonstring))
        file.close()
        return ds

# Form implementation generated from reading ui file 'MainWindow.ui'
#
# Created by: PyQt6 UI code generator 6.4.2
#
# WARNING: Any manual changes made to this file will be lost when pyuic6 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt6 import QtCore, QtGui, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(650, 437)
        font = QtGui.QFont()
        font.setPointSize(12)
        MainWindow.setFont(font)
        icon = QtGui.QIcon()
        icon.addPixmap(QtGui.QPixmap("images/ic_logo.jpg"), QtGui.QIcon.Mode.Normal, QtGui.QIcon.State.Off)
        MainWindow.setWindowIcon(icon)
        self.centralwidget = QtWidgets.QWidget(parent=MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.groupBox = QtWidgets.QGroupBox(parent=self.centralwidget)
        self.groupBox.setGeometry(QtCore.QRect(270, 30, 351, 271))
        self.groupBox.setStyleSheet("background-color: rgb(255, 206, 241);")
        self.groupBox.setObjectName("groupBox")
        self.label_3 = QtWidgets.QLabel(parent=self.groupBox)
        self.label_3.setGeometry(QtCore.QRect(10, 30, 111, 20))
        self.label_3.setObjectName("label_3")
        self.lineEditProductId = QtWidgets.QLineEdit(parent=self.groupBox)
        self.lineEditProductId.setGeometry(QtCore.QRect(80, 60, 211, 22))
        self.lineEditProductId.setObjectName("lineEditProductId")
        self.label_4 = QtWidgets.QLabel(parent=self.groupBox)
        self.label_4.setGeometry(QtCore.QRect(10, 90, 151, 16))
        self.label_4.setObjectName("label_4")
        self.lineEditProductName = QtWidgets.QLineEdit(parent=self.groupBox)
        self.lineEditProductName.setGeometry(QtCore.QRect(80, 120, 211, 22))
        self.lineEditProductName.setObjectName("lineEditProductName")
        self.lineEditUnitPrice = QtWidgets.QLineEdit(parent=self.groupBox)
        self.lineEditUnitPrice.setGeometry(QtCore.QRect(80, 170, 211, 22))
        self.lineEditUnitPrice.setObjectName("lineEditUnitPrice")
        self.label_5 = QtWidgets.QLabel(parent=self.groupBox)
        self.label_5.setGeometry(QtCore.QRect(10, 150, 111, 16))
        self.label_5.setObjectName("label_5")
        self.label_6 = QtWidgets.QLabel(parent=self.groupBox)
        self.label_6.setGeometry(QtCore.QRect(10, 200, 141, 31))
        self.label_6.setObjectName("label_6")
        self.dateTimeEditTracking = QtWidgets.QDateTimeEdit(parent=self.groupBox)
        self.dateTimeEditTracking.setGeometry(QtCore.QRect(80, 230, 221, 31))
        self.dateTimeEditTracking.setDateTime(QtCore.QDateTime(QtCore.QDate(2023, 12, 29), QtCore.QTime(0, 0, 0)))
        self.dateTimeEditTracking.setCalendarPopup(True)
        self.dateTimeEditTracking.setObjectName("dateTimeEditTracking")
        self.groupBox_2 = QtWidgets.QGroupBox(parent=self.centralwidget)
        self.groupBox_2.setGeometry(QtCore.QRect(9, 39, 251, 341))
        self.groupBox_2.setStyleSheet("background-color: rgb(212, 253, 255);")
        self.groupBox_2.setTitle("")
        self.groupBox_2.setObjectName("groupBox_2")
        self.listWidgetProduct = QtWidgets.QListWidget(parent=self.groupBox_2)
        self.listWidgetProduct.setGeometry(QtCore.QRect(10, 100, 231, 221))
        self.listWidgetProduct.setStyleSheet("background-color: rgb(237, 255, 202);")
        self.listWidgetProduct.setObjectName("listWidgetProduct")
        self.label = QtWidgets.QLabel(parent=self.groupBox_2)
        self.label.setGeometry(QtCore.QRect(10, 10, 161, 21))
        self.label.setObjectName("label")
        self.cboCatalog = QtWidgets.QComboBox(parent=self.groupBox_2)
        self.cboCatalog.setGeometry(QtCore.QRect(10, 40, 221, 22))
        self.cboCatalog.setStyleSheet("background-color: rgb(237, 255, 202);")
        self.cboCatalog.setObjectName("cboCatalog")
        self.label_2 = QtWidgets.QLabel(parent=self.groupBox_2)
        self.label_2.setGeometry(QtCore.QRect(10, 70, 161, 21))
        self.label_2.setObjectName("label_2")
        self.groupBox_3 = QtWidgets.QGroupBox(parent=self.centralwidget)
        self.groupBox_3.setGeometry(QtCore.QRect(270, 300, 351, 81))
        self.groupBox_3.setStyleSheet("background-color: rgb(249, 255, 210);")
        self.groupBox_3.setObjectName("groupBox_3")
        self.pushButtonNew = QtWidgets.QPushButton(parent=self.groupBox_3)
        self.pushButtonNew.setGeometry(QtCore.QRect(10, 30, 93, 41))
        self.pushButtonNew.setStyleSheet("background-color: rgb(170, 255, 127);")
        icon1 = QtGui.QIcon()
        icon1.addPixmap(QtGui.QPixmap("images/ic_new.png"), QtGui.QIcon.Mode.Normal, QtGui.QIcon.State.Off)
        self.pushButtonNew.setIcon(icon1)
        self.pushButtonNew.setIconSize(QtCore.QSize(32, 32))
        self.pushButtonNew.setObjectName("pushButtonNew")
        self.pushButtonSave = QtWidgets.QPushButton(parent=self.groupBox_3)
        self.pushButtonSave.setGeometry(QtCore.QRect(120, 30, 93, 41))
        self.pushButtonSave.setStyleSheet("background-color: rgb(170, 255, 127);")
        icon2 = QtGui.QIcon()
        icon2.addPixmap(QtGui.QPixmap("images/ic_save.png"), QtGui.QIcon.Mode.Normal, QtGui.QIcon.State.Off)
        self.pushButtonSave.setIcon(icon2)
        self.pushButtonSave.setIconSize(QtCore.QSize(32, 32))
        self.pushButtonSave.setObjectName("pushButtonSave")
        self.pushButtonDelete = QtWidgets.QPushButton(parent=self.groupBox_3)
        self.pushButtonDelete.setGeometry(QtCore.QRect(232, 30, 111, 41))
        self.pushButtonDelete.setStyleSheet("background-color: rgb(170, 255, 127);")
        icon3 = QtGui.QIcon()
        icon3.addPixmap(QtGui.QPixmap("images/ic_delete.png"), QtGui.QIcon.Mode.Normal, QtGui.QIcon.State.Off)
        self.pushButtonDelete.setIcon(icon3)
        self.pushButtonDelete.setIconSize(QtCore.QSize(32, 32))
        self.pushButtonDelete.setObjectName("pushButtonDelete")
        self.label_7 = QtWidgets.QLabel(parent=self.centralwidget)
        self.label_7.setGeometry(QtCore.QRect(210, 0, 301, 31))
        palette = QtGui.QPalette()
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Active, QtGui.QPalette.ColorRole.WindowText, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Active, QtGui.QPalette.ColorRole.Text, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Active, QtGui.QPalette.ColorRole.ButtonText, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Inactive, QtGui.QPalette.ColorRole.WindowText, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Inactive, QtGui.QPalette.ColorRole.Text, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Inactive, QtGui.QPalette.ColorRole.ButtonText, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Disabled, QtGui.QPalette.ColorRole.WindowText, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Disabled, QtGui.QPalette.ColorRole.Text, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Disabled, QtGui.QPalette.ColorRole.ButtonText, brush)
        self.label_7.setPalette(palette)
        font = QtGui.QFont()
        font.setPointSize(15)
        font.setBold(True)
        font.setWeight(75)
        self.label_7.setFont(font)
        self.label_7.setStyleSheet("color: rgb(255, 0, 0);")
        self.label_7.setObjectName("label_7")
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(parent=MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 650, 26))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(parent=MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "Trần Duy Thanh - QDateTime Demo"))
        self.groupBox.setTitle(_translate("MainWindow", "Product Details:"))
        self.label_3.setText(_translate("MainWindow", "Product ID:"))
        self.label_4.setText(_translate("MainWindow", "Product Name:"))
        self.label_5.setText(_translate("MainWindow", "Unit Price:"))
        self.label_6.setText(_translate("MainWindow", "Time Tracking:"))
        self.dateTimeEditTracking.setDisplayFormat(_translate("MainWindow", "dd/MM/yyyy HH:mm:ss"))
        self.label.setText(_translate("MainWindow", "Select a Catalog:"))
        self.label_2.setText(_translate("MainWindow", "List of Products:"))
        self.groupBox_3.setTitle(_translate("MainWindow", "Action:"))
        self.pushButtonNew.setText(_translate("MainWindow", "New"))
        self.pushButtonSave.setText(_translate("MainWindow", "Save"))
        self.pushButtonDelete.setText(_translate("MainWindow", "Delete"))
        self.label_7.setText(_translate("MainWindow", "Product Management"))

import datetime
from PyQt6.QtCore import Qt
from PyQt6.QtWidgets import QListWidgetItem
from Dataset import Dataset
from FileFactory import FileFactory
from MainWindow import Ui_MainWindow
from Product import Product

class MainWindowEx(Ui_MainWindow):
    def __init__(self):
        super().__init__()
        self.fileFactory = FileFactory()
        self.dataset=None
        self.selectedCatalog=None
        self.selectedProduct=None

def setupUi(self, MainWindow):
    super().setupUi(MainWindow)
    self.MainWindow=MainWindow
    self.dataset = self.fileFactory.readData("database.json", Dataset)
    self.dataset.reModel()
    self.loadCatalogForComboBox()
    self.cboCatalog.activated.connect(self.processSelectedCatalog)
    self.listWidgetProduct.itemSelectionChanged.connect(self.processSelectedProduct)
    self.pushButtonNew.clicked.connect(self.processNew)
    self.pushButtonSave.clicked.connect(self.processSave)
    self.pushButtonDelete.clicked.connect(self.processDelete)

def loadCatalogForComboBox(self):
    for i in range(self.dataset.size()):
        catalog=self.dataset.item(i)
        self.cboCatalog.addItem(str(catalog),catalog)

def processSelectedCatalog(self):
    self.selectedCatalog=self.cboCatalog.currentData(Qt.ItemDataRole.UserRole)
    self.listWidgetProduct.clear()
    for i in range(self.selectedCatalog.size()):
        product=self.selectedCatalog.item(i)
        item=QListWidgetItem()
        item.setData(Qt.ItemDataRole.UserRole, product)
        item.setText(str(product))
        self.listWidgetProduct.addItem(item)

def processNew(self):
    self.lineEditProductId.setText("")
    self.lineEditProductName.setText("")
    self.lineEditUnitPrice.setText("")
    self.selectedProduct=None
    self.lineEditProductId.setFocus()

def processSave(self):
    if self.selectedCatalog==None:
        return
    id=int(self.lineEditProductId.text())
    name=self.lineEditProductName.text()
    price=float(self.lineEditUnitPrice.text())
    tracking=self.dateTimeEditTracking.dateTime()
    date_format = '%Y-%m-%d %H:%M:%S'
    trackingFormat=tracking.toPyDateTime().strftime(date_format)

    product=Product(id,name,price,trackingFormat)
    item = QListWidgetItem()
    item.setData(Qt.ItemDataRole.UserRole, product)
    item.setText(str(product))
    if self.selectedProduct==None:
        self.selectedProduct=product
        self.selectedCatalog.add(product)
        self.listWidgetProduct.addItem(item)
    else:
        index=self.selectedCatalog.index(self.selectedProduct)
        self.selectedProduct=product
        self.selectedCatalog.update(index,self.selectedProduct)
        item = self.listWidgetProduct.item(index)
        item.setData(Qt.ItemDataRole.UserRole,self.selectedProduct)
        item.setText(str(self.selectedProduct))
    self.fileFactory.writeData("database.json", self.dataset)

def processDelete(self):
    if self.selectedProduct!=None:
        index = self.selectedCatalog.index(self.selectedProduct)
        self.selectedCatalog.removeByItem(self.selectedProduct)
        self.fileFactory.writeData("database.json", self.dataset)
        self.processSelectedCatalog()
        self.processNew()

import datetime
from PyQt6.QtCore import Qt
from PyQt6.QtWidgets import QListWidgetItem
from Dataset import Dataset
from FileFactory import FileFactory
from MainWindow import Ui_MainWindow
from Product import Product

class MainWindowEx(Ui_MainWindow):
    def __init__(self):
        super().__init__()
        self.fileFactory = FileFactory()
        self.dataset=None
        self.selectedCatalog=None
        self.selectedProduct=None
    def setupUi(self, MainWindow):
        super().setupUi(MainWindow)
        self.MainWindow=MainWindow
        self.dataset = self.fileFactory.readData("database.json", Dataset)
        self.dataset.reModel()
        self.loadCatalogForComboBox()
        self.cboCatalog.activated.connect(self.processSelectedCatalog)
        self.listWidgetProduct.itemSelectionChanged.connect(self.processSelectedProduct)
        self.pushButtonNew.clicked.connect(self.processNew)
        self.pushButtonSave.clicked.connect(self.processSave)
        self.pushButtonDelete.clicked.connect(self.processDelete)
    def loadCatalogForComboBox(self):
        for i in range(self.dataset.size()):
            catalog=self.dataset.item(i)
            self.cboCatalog.addItem(str(catalog),catalog)
    def processSelectedCatalog(self):
        self.selectedCatalog=self.cboCatalog.currentData(Qt.ItemDataRole.UserRole)
        self.listWidgetProduct.clear()
        for i in range(self.selectedCatalog.size()):
            product=self.selectedCatalog.item(i)
            item=QListWidgetItem()
            item.setData(Qt.ItemDataRole.UserRole, product)
            item.setText(str(product))
            self.listWidgetProduct.addItem(item)

    def processSelectedProduct(self):
        current_row = self.listWidgetProduct.currentRow()
        if current_row < 0:
            return
        item = self.listWidgetProduct.item(current_row)
        self.selectedProduct = item.data(Qt.ItemDataRole.UserRole)
        self.lineEditProductId.setText(str(self.selectedProduct.id))
        self.lineEditProductName.setText(self.selectedProduct.name)
        self.lineEditUnitPrice.setText(str(self.selectedProduct.price))
        date_format = '%Y-%m-%d %H:%M:%S'
        timetracking=datetime.datetime.strptime(self.selectedProduct.timetracking,date_format)
        self.dateTimeEditTracking.setDateTime(timetracking)
    def processNew(self):
        self.lineEditProductId.setText("")
        self.lineEditProductName.setText("")
        self.lineEditUnitPrice.setText("")
        self.selectedProduct=None
        self.lineEditProductId.setFocus()
    def processSave(self):
        if self.selectedCatalog==None:
            return
        id=int(self.lineEditProductId.text())
        name=self.lineEditProductName.text()
        price=float(self.lineEditUnitPrice.text())
        tracking=self.dateTimeEditTracking.dateTime()
        date_format = '%Y-%m-%d %H:%M:%S'
        trackingFormat=tracking.toPyDateTime().strftime(date_format)

        product=Product(id,name,price,trackingFormat)
        item = QListWidgetItem()
        item.setData(Qt.ItemDataRole.UserRole, product)
        item.setText(str(product))
        if self.selectedProduct==None:
            self.selectedProduct=product
            self.selectedCatalog.add(product)
            self.listWidgetProduct.addItem(item)
        else:
            index=self.selectedCatalog.index(self.selectedProduct)
            self.selectedProduct=product
            self.selectedCatalog.update(index,self.selectedProduct)
            item = self.listWidgetProduct.item(index)
            item.setData(Qt.ItemDataRole.UserRole,self.selectedProduct)
            item.setText(str(self.selectedProduct))
        self.fileFactory.writeData("database.json", self.dataset)

    def processDelete(self):
        if self.selectedProduct!=None:
            index = self.selectedCatalog.index(self.selectedProduct)
            self.selectedCatalog.removeByItem(self.selectedProduct)
            self.fileFactory.writeData("database.json", self.dataset)
            self.processSelectedCatalog()
            self.processNew()

    def show(self):
        self.MainWindow.show()

from PyQt6.QtWidgets import QApplication, QMainWindow

from MainWindowEx import MainWindowEx

app=QApplication([])
myWindow=MainWindowEx()
myWindow.setupUi(QMainWindow())
myWindow.show()
app.exec()

self.time_edit = QTimeEdit(self)

time=QTime(10,15,35)
self.time_edit.setTime(time)
self.time_edit.setDisplayFormat("HH:mm:ss AP")

self.time_edit.editingFinished.connect(self.update_time)

def update_time(self):
    value = self.time_edit.time()
    print(str(value.toPyTime()))

self.time_edit.timeChanged.connect(self.change_time)

def change_time(self):
    value = self.time_edit.time()
    print(str(value.toPyTime()))

import sys

from PyQt6.QtCore import QTime
from PyQt6.QtWidgets import QApplication, QWidget, QTimeEdit, QLabel, QFormLayout


class MainWindow(QWidget):
    def __init__(self):
        super().__init__()

        self.setWindowTitle('PyQt QTimeEdit')
        self.setMinimumWidth(200)

        # create a grid layout
        layout = QFormLayout()
        self.setLayout(layout)

        self.time_edit = QTimeEdit(self)
        time=QTime(10,15,35)
        self.time_edit.setTime(time)
        self.time_edit.setDisplayFormat("HH:mm:ss A")

        self.time_edit.editingFinished.connect(self.update_time)
        self.time_edit.timeChanged.connect(self.change_time)

        self.result_label = QLabel('', self)

        layout.addRow('Time:', self.time_edit)
        layout.addRow(self.result_label)
    def update_time(self):
        value = self.time_edit.time()
        print(str(value.toPyTime()))
        self.result_label.setText(str(value.toPyTime()))
        pass
    def change_time(self):
        value = self.time_edit.time()
        print(str(value.toPyTime()))
        self.result_label.setText(str(value.toPyTime()))
app = QApplication([])
window = MainWindow()
window.show()
app.exec()

class Task:
    def __init__(self,title,content,deadline,deadlinetime,isfinish):
        self.title=title
        self.content=content
        self.deadline=deadline
        self.deadlinetime=deadlinetime
        self.isfinish=isfinish
        pass
    def __str__(self):
        return self.title

from Task import Task
class Tasks:
    def __init__(self):
        self.lists=[]
    def item(self,index)->Task:
        return self.lists[index]
    def add(self,task):
        self.lists.append(task)
    def addAll(self,tasks):
        for i in range(len(tasks)):
            task=tasks[i]
            self.add(task)
    def index(self,task):
        i=self.lists.index(task)
        return i
    def update(self,index,task)->Task:
        self.lists[index]=task
        return self.lists[index]
    def removeByIndex(self,index)->Task:
        return self.lists.pop(index)
    def removeByItem(self,item):
        self.lists.remove(item)
    def clear(self):
        self.lists.clear()
    def size(self):
        return len(self.lists)

import json
import os

class FileFactory:
    #path: path to serialize array of product
    #arrData: array of Product
    def writeData(self,path,arrData):
        jsonString = json.dumps([item.__dict__ for item in arrData],default=str)
        jsonFile = open(path, "w")
        jsonFile.write(jsonString)
        jsonFile.close()
    #path: path to deserialize array of Product
    #ClassName: Product
    def readData(self,path,ClassName):
        if os.path.isfile(path) == False:
            return []
        file = open(path, "r")
        # Reading from file
        self.arrData = json.loads(file.read(), object_hook=lambda d: ClassName(**d))
        file.close()
        return self.arrData

# Form implementation generated from reading ui file 'MainWindow.ui'
#
# Created by: PyQt6 UI code generator 6.5.2
#
# WARNING: Any manual changes made to this file will be lost when pyuic6 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt6 import QtCore, QtGui, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(566, 385)
        font = QtGui.QFont()
        font.setPointSize(11)
        MainWindow.setFont(font)
        icon = QtGui.QIcon()
        icon.addPixmap(QtGui.QPixmap("images/ic_logo.jpg"), QtGui.QIcon.Mode.Normal, QtGui.QIcon.State.Off)
        MainWindow.setWindowIcon(icon)
        MainWindow.setStyleSheet("")
        self.centralwidget = QtWidgets.QWidget(parent=MainWindow)
        self.centralwidget.setStyleSheet("")
        self.centralwidget.setObjectName("centralwidget")
        self.groupBox = QtWidgets.QGroupBox(parent=self.centralwidget)
        self.groupBox.setGeometry(QtCore.QRect(10, 30, 211, 311))
        self.groupBox.setStyleSheet("background-color: rgb(230, 255, 246);")
        self.groupBox.setObjectName("groupBox")
        self.verticalLayout = QtWidgets.QVBoxLayout(self.groupBox)
        self.verticalLayout.setObjectName("verticalLayout")
        self.listWidgetTask = QtWidgets.QListWidget(parent=self.groupBox)
        self.listWidgetTask.setObjectName("listWidgetTask")
        self.verticalLayout.addWidget(self.listWidgetTask)
        self.groupBox_2 = QtWidgets.QGroupBox(parent=self.centralwidget)
        self.groupBox_2.setGeometry(QtCore.QRect(230, 30, 321, 241))
        self.groupBox_2.setStyleSheet("background-color: rgb(248, 255, 215);")
        self.groupBox_2.setObjectName("groupBox_2")
        self.label_2 = QtWidgets.QLabel(parent=self.groupBox_2)
        self.label_2.setGeometry(QtCore.QRect(10, 30, 31, 16))
        self.label_2.setObjectName("label_2")
        self.label_3 = QtWidgets.QLabel(parent=self.groupBox_2)
        self.label_3.setGeometry(QtCore.QRect(10, 90, 51, 16))
        self.label_3.setObjectName("label_3")
        self.lineEditTitle = QtWidgets.QLineEdit(parent=self.groupBox_2)
        self.lineEditTitle.setGeometry(QtCore.QRect(60, 30, 241, 20))
        self.lineEditTitle.setObjectName("lineEditTitle")
        self.textEditContent = QtWidgets.QTextEdit(parent=self.groupBox_2)
        self.textEditContent.setGeometry(QtCore.QRect(60, 60, 241, 81))
        self.textEditContent.setObjectName("textEditContent")
        self.radFinished = QtWidgets.QRadioButton(parent=self.groupBox_2)
        self.radFinished.setGeometry(QtCore.QRect(60, 210, 83, 18))
        self.radFinished.setObjectName("radFinished")
        self.radNotFinished = QtWidgets.QRadioButton(parent=self.groupBox_2)
        self.radNotFinished.setGeometry(QtCore.QRect(150, 210, 101, 20))
        self.radNotFinished.setObjectName("radNotFinished")
        self.label_4 = QtWidgets.QLabel(parent=self.groupBox_2)
        self.label_4.setGeometry(QtCore.QRect(10, 150, 51, 20))
        self.label_4.setObjectName("label_4")
        self.dateEditDeadline = QtWidgets.QDateEdit(parent=self.groupBox_2)
        self.dateEditDeadline.setGeometry(QtCore.QRect(60, 150, 110, 22))
        self.dateEditDeadline.setCalendarPopup(True)
        self.dateEditDeadline.setDate(QtCore.QDate(2023, 12, 14))
        self.dateEditDeadline.setObjectName("dateEditDeadline")
        self.label_5 = QtWidgets.QLabel(parent=self.groupBox_2)
        self.label_5.setGeometry(QtCore.QRect(10, 180, 41, 16))
        self.label_5.setObjectName("label_5")
        self.timeEditDeadline = QtWidgets.QTimeEdit(parent=self.groupBox_2)
        self.timeEditDeadline.setGeometry(QtCore.QRect(60, 180, 111, 22))
        self.timeEditDeadline.setObjectName("timeEditDeadline")
        self.label = QtWidgets.QLabel(parent=self.centralwidget)
        self.label.setGeometry(QtCore.QRect(30, 0, 491, 31))
        font = QtGui.QFont()
        font.setFamily("Times New Roman")
        font.setPointSize(18)
        font.setBold(False)
        font.setItalic(False)
        font.setWeight(9)
        self.label.setFont(font)
        self.label.setStyleSheet("font: 75 18pt \"Times New Roman\";\n"
"color: rgb(0, 0, 255);")
        self.label.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
        self.label.setObjectName("label")
        self.groupBox_3 = QtWidgets.QGroupBox(parent=self.centralwidget)
        self.groupBox_3.setGeometry(QtCore.QRect(230, 280, 321, 61))
        self.groupBox_3.setStyleSheet("background-color: rgb(255, 216, 249);")
        self.groupBox_3.setObjectName("groupBox_3")
        self.pushButtonNew = QtWidgets.QPushButton(parent=self.groupBox_3)
        self.pushButtonNew.setGeometry(QtCore.QRect(20, 20, 71, 31))
        self.pushButtonNew.setStyleSheet("background-color: rgb(255, 255, 127);")
        icon1 = QtGui.QIcon()
        icon1.addPixmap(QtGui.QPixmap("images/ic_add.png"), QtGui.QIcon.Mode.Normal, QtGui.QIcon.State.Off)
        self.pushButtonNew.setIcon(icon1)
        self.pushButtonNew.setIconSize(QtCore.QSize(24, 24))
        self.pushButtonNew.setObjectName("pushButtonNew")
        self.pushButtonSave = QtWidgets.QPushButton(parent=self.groupBox_3)
        self.pushButtonSave.setGeometry(QtCore.QRect(120, 20, 71, 31))
        self.pushButtonSave.setStyleSheet("background-color: rgb(255, 255, 127);")
        icon2 = QtGui.QIcon()
        icon2.addPixmap(QtGui.QPixmap("images/ic_save.png"), QtGui.QIcon.Mode.Normal, QtGui.QIcon.State.Off)
        self.pushButtonSave.setIcon(icon2)
        self.pushButtonSave.setIconSize(QtCore.QSize(24, 24))
        self.pushButtonSave.setObjectName("pushButtonSave")
        self.pushButtonRemove = QtWidgets.QPushButton(parent=self.groupBox_3)
        self.pushButtonRemove.setGeometry(QtCore.QRect(220, 20, 81, 31))
        self.pushButtonRemove.setStyleSheet("background-color: rgb(255, 255, 127);")
        icon3 = QtGui.QIcon()
        icon3.addPixmap(QtGui.QPixmap("images/ic_remove.png"), QtGui.QIcon.Mode.Normal, QtGui.QIcon.State.Off)
        self.pushButtonRemove.setIcon(icon3)
        self.pushButtonRemove.setIconSize(QtCore.QSize(24, 24))
        self.pushButtonRemove.setObjectName("pushButtonRemove")
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(parent=MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 566, 22))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(parent=MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "Tran Duy Thanh - Tracking Tasks"))
        self.groupBox.setTitle(_translate("MainWindow", "List of Tasks:"))
        self.groupBox_2.setTitle(_translate("MainWindow", "Details of Task:"))
        self.label_2.setText(_translate("MainWindow", "Title:"))
        self.label_3.setText(_translate("MainWindow", "Content:"))
        self.radFinished.setText(_translate("MainWindow", "Finished"))
        self.radNotFinished.setText(_translate("MainWindow", "Not Finished"))
        self.label_4.setText(_translate("MainWindow", "Deadline:"))
        self.label_5.setText(_translate("MainWindow", "Time:"))
        self.label.setText(_translate("MainWindow", "Tracking Tasks"))
        self.groupBox_3.setTitle(_translate("MainWindow", "Actions:"))
        self.pushButtonNew.setText(_translate("MainWindow", "New"))
        self.pushButtonSave.setText(_translate("MainWindow", "Save"))
        self.pushButtonRemove.setText(_translate("MainWindow", "Remove"))

import datetime

from PyQt6.QtCore import Qt
from PyQt6.QtGui import QIcon
from PyQt6.QtWidgets import QMessageBox, QListWidgetItem

from FileFactory import FileFactory
from MainWindow import Ui_MainWindow
from Task import Task
from Tasks import Tasks

class MainWindowEx(Ui_MainWindow):
    def __init__(self):
        super().__init__()
        self.tasks=Tasks()
        self.fileFactory = FileFactory()
        self.selectedTask=None

def setupUi(self, MainWindow):
    super().setupUi(MainWindow)
    self.MainWindow=MainWindow
    arrData= self.fileFactory.readData("database.json", Task)
    self.tasks.addAll(arrData)
    self.showTasksIntoQListWidget()
    self.pushButtonNew.clicked.connect(self.processNew)
    self.pushButtonSave.clicked.connect(self.processSave)
    self.pushButtonRemove.clicked.connect(self.processRemove)
    self.listWidgetTask.itemSelectionChanged.connect(self.processItemSelection)

def showTasksIntoQListWidget(self):
    self.listWidgetTask.clear()
    for index in range(self.tasks.size()):
        task=self.tasks.item(index)
        item=QListWidgetItem()
        item.setData(Qt.ItemDataRole.UserRole, task)
        item.setText(str(task))
        item.setCheckState(Qt.CheckState.Unchecked)
        if task.isfinish==True:
            item.setIcon(QIcon("images/ic_finished.png"))
        else:
            item.setIcon(QIcon("images/ic_notfinished.png"))
        if isinstance(task.deadline,str):
            task.deadline= datetime.date.fromisoformat(task.deadline)
        if isinstance(task.deadlinetime,str):
            task.deadlinetime=datetime.time.fromisoformat(task.deadlinetime)
        self.listWidgetTask.addItem(item)

def processNew(self):
    self.lineEditTitle.setText("")
    self.textEditContent.setText("")
    self.dateEditDeadline.setSpecialValueText(None)
    self.radFinished.setAutoExclusive(False)
    self.radNotFinished.setAutoExclusive(False)
    self.radFinished.setChecked(False)
    self.radNotFinished.setChecked(False)
    self.radFinished.setAutoExclusive(True)
    self.radNotFinished.setAutoExclusive(True)
    self.selectedTask=None
    self.lineEditTitle.setFocus()

def processSave(self):
    title=self.lineEditTitle.text()
    content=self.textEditContent.toPlainText()
    date=self.dateEditDeadline.date().toPyDate()
    time=self.timeEditDeadline.time().toPyTime()
    isFinished=self.radFinished.isChecked()
    task=Task(title,content,date,time,isFinished)
    if self.selectedTask==None:
        self.tasks.add(task)
    else:
        index=self.tasks.index(self.selectedTask)
        self.tasks.update(index,task)
    self.selectedTask = task
    self.showTasksIntoQListWidget()
    self.fileFactory.writeData("database.json",self.tasks.lists)

def processRemove(self):
    answer = QMessageBox.question(
        self.MainWindow,
        'Confirmation',
        'Do you want to remove checked Items?',
        QMessageBox.StandardButton.Yes |
        QMessageBox.StandardButton.No
    )
    if answer == QMessageBox.StandardButton.No:
        return
    size=self.listWidgetTask.count()
    for index in range(size-1,-1,-1):
        item=self.listWidgetTask.item(index)
        if item.checkState()==Qt.CheckState.Checked:
            self.tasks.removeByIndex(index)
    self.selectedTask = None
    self.showTasksIntoQListWidget()
    self.fileFactory.writeData("database.json", self.tasks.lists)

def processItemSelection(self):
    row=self.listWidgetTask.currentRow()
    task=self.tasks.item(row)
    self.lineEditTitle.setText(task.title)
    self.textEditContent.setText(task.content)
    self.dateEditDeadline.setDate(task.deadline)
    self.timeEditDeadline.setTime(task.deadlinetime)
    if task.isfinish:
        self.radFinished.setChecked(True)
        self.radNotFinished.setChecked(False)
    else:
        self.radFinished.setChecked(False)
        self.radNotFinished.setChecked(True)
    self.selectedTask=task

import datetime

from PyQt6.QtCore import Qt
from PyQt6.QtGui import QIcon
from PyQt6.QtWidgets import QMessageBox, QListWidgetItem

from FileFactory import FileFactory
from MainWindow import Ui_MainWindow
from Task import Task
from Tasks import Tasks

class MainWindowEx(Ui_MainWindow):
    def __init__(self):
        super().__init__()
        self.tasks=Tasks()
        self.fileFactory = FileFactory()
        self.selectedTask=None
    def setupUi(self, MainWindow):
        super().setupUi(MainWindow)
        self.MainWindow=MainWindow
        arrData= self.fileFactory.readData("database.json", Task)
        self.tasks.addAll(arrData)
        self.showTasksIntoQListWidget()
        self.pushButtonNew.clicked.connect(self.processNew)
        self.pushButtonSave.clicked.connect(self.processSave)
        self.pushButtonRemove.clicked.connect(self.processRemove)
        self.listWidgetTask.itemSelectionChanged.connect(self.processItemSelection)
    def showTasksIntoQListWidget(self):
        self.listWidgetTask.clear()
        for index in range(self.tasks.size()):
            task=self.tasks.item(index)
            item=QListWidgetItem()
            item.setData(Qt.ItemDataRole.UserRole, task)
            item.setText(str(task))
            item.setCheckState(Qt.CheckState.Unchecked)
            if task.isfinish==True:
                item.setIcon(QIcon("images/ic_finished.png"))
            else:
                item.setIcon(QIcon("images/ic_notfinished.png"))
            if isinstance(task.deadline,str):
                task.deadline= datetime.date.fromisoformat(task.deadline)
            if isinstance(task.deadlinetime,str):
                task.deadlinetime=datetime.time.fromisoformat(task.deadlinetime)
            self.listWidgetTask.addItem(item)
    def processNew(self):
        self.lineEditTitle.setText("")
        self.textEditContent.setText("")
        self.dateEditDeadline.setSpecialValueText(None)
        self.radFinished.setAutoExclusive(False)
        self.radNotFinished.setAutoExclusive(False)
        self.radFinished.setChecked(False)
        self.radNotFinished.setChecked(False)
        self.radFinished.setAutoExclusive(True)
        self.radNotFinished.setAutoExclusive(True)
        self.selectedTask=None
        self.lineEditTitle.setFocus()
    def processSave(self):
        title=self.lineEditTitle.text()
        content=self.textEditContent.toPlainText()
        date=self.dateEditDeadline.date().toPyDate()
        time=self.timeEditDeadline.time().toPyTime()
        isFinished=self.radFinished.isChecked()
        task=Task(title,content,date,time,isFinished)
        if self.selectedTask==None:
            self.tasks.add(task)
        else:
            index=self.tasks.index(self.selectedTask)
            self.tasks.update(index,task)
        self.selectedTask = task
        self.showTasksIntoQListWidget()
        self.fileFactory.writeData("database.json",self.tasks.lists)
    def processRemove(self):
        answer = QMessageBox.question(
            self.MainWindow,
            'Confirmation',
            'Do you want to remove checked Items?',
            QMessageBox.StandardButton.Yes |
            QMessageBox.StandardButton.No
        )
        if answer == QMessageBox.StandardButton.No:
            return
        size=self.listWidgetTask.count()
        for index in range(size-1,-1,-1):
            item=self.listWidgetTask.item(index)
            if item.checkState()==Qt.CheckState.Checked:
                self.tasks.removeByIndex(index)
        self.selectedTask = None
        self.showTasksIntoQListWidget()
        self.fileFactory.writeData("database.json", self.tasks.lists)
    def processItemSelection(self):
        row=self.listWidgetTask.currentRow()
        task=self.tasks.item(row)
        self.lineEditTitle.setText(task.title)
        self.textEditContent.setText(task.content)
        self.dateEditDeadline.setDate(task.deadline)
        self.timeEditDeadline.setTime(task.deadlinetime)
        if task.isfinish:
            self.radFinished.setChecked(True)
            self.radNotFinished.setChecked(False)
        else:
            self.radFinished.setChecked(False)
            self.radNotFinished.setChecked(True)
        self.selectedTask=task
    def show(self):
        self.MainWindow.show()

from PyQt6.QtWidgets import QApplication, QMainWindow

from MainWindowEx import MainWindowEx

app=QApplication([])
window=MainWindowEx()
window.setupUi(QMainWindow())
window.show()
app.exec()

self.date_edit = QDateEdit(self,calendarPopup=True)

today=date.today()
self.date_edit.setDate(today)
self.date_edit.setDisplayFormat("dd/MM/yyyy")

self.date_edit.editingFinished.connect(self.SelectedDate)

def SelectedDate(self):
    value = self.date_edit.date()
    print(type(value))
    print(str(value.toPyDate()))

self.date_edit.dateChanged.connect(self.ChangingDate)

def ChangingDate(self):
    value = self.date_edit.date()
    print(type(value))
    print(str(value.toPyDate()))

class Product:
    def __init__(self,ProductId,ProductName,Price,ExpiredDate,FreeTax):
        self.ProductId=ProductId
        self.ProductName=ProductName
        self.Price=Price
        self.ExpiredDate=ExpiredDate
        self.FreeTax=FreeTax
    def __str__(self):
        return str(self.ProductId) +" - "+self.ProductName

import json
import os

class FileFactory:
    #path: path to serialize array of product
    #arrData: array of Product
    def writeData(self,path,arrData):
        jsonString = json.dumps([item.__dict__ for item in arrData],default=str)
        jsonFile = open(path, "w")
        jsonFile.write(jsonString)
        jsonFile.close()
    #path: path to deserialize array of Product
    #ClassName: Product
    def readData(self,path,ClassName):
        if os.path.isfile(path) == False:
            return []
        file = open(path, "r")
        # Reading from file
        self.arrData = json.loads(file.read(), object_hook=lambda d: ClassName(**d))
        file.close()
        return self.arrData

# Form implementation generated from reading ui file 'MainWindow.ui'
#
# Created by: PyQt6 UI code generator 6.5.2
#
# WARNING: Any manual changes made to this file will be lost when pyuic6 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt6 import QtCore, QtGui, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(457, 533)
        font = QtGui.QFont()
        font.setPointSize(10)
        MainWindow.setFont(font)
        icon = QtGui.QIcon()
        icon.addPixmap(QtGui.QPixmap("images/ic_logo.jpg"), QtGui.QIcon.Mode.Normal, QtGui.QIcon.State.Off)
        MainWindow.setWindowIcon(icon)
        self.centralwidget = QtWidgets.QWidget(parent=MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.groupBox = QtWidgets.QGroupBox(parent=self.centralwidget)
        self.groupBox.setGeometry(QtCore.QRect(10, 20, 441, 161))
        self.groupBox.setStyleSheet("background-color: rgb(255, 213, 255);")
        self.groupBox.setFlat(False)
        self.groupBox.setCheckable(False)
        self.groupBox.setObjectName("groupBox")
        self.label = QtWidgets.QLabel(parent=self.groupBox)
        self.label.setGeometry(QtCore.QRect(30, 20, 47, 14))
        self.label.setObjectName("label")
        self.lineEditId = QtWidgets.QLineEdit(parent=self.groupBox)
        self.lineEditId.setGeometry(QtCore.QRect(110, 20, 251, 20))
        self.lineEditId.setObjectName("lineEditId")
        self.lineEditName = QtWidgets.QLineEdit(parent=self.groupBox)
        self.lineEditName.setGeometry(QtCore.QRect(110, 50, 251, 20))
        self.lineEditName.setObjectName("lineEditName")
        self.label_2 = QtWidgets.QLabel(parent=self.groupBox)
        self.label_2.setGeometry(QtCore.QRect(30, 50, 47, 14))
        self.label_2.setObjectName("label_2")
        self.lineEditPrice = QtWidgets.QLineEdit(parent=self.groupBox)
        self.lineEditPrice.setGeometry(QtCore.QRect(110, 80, 251, 20))
        self.lineEditPrice.setObjectName("lineEditPrice")
        self.label_3 = QtWidgets.QLabel(parent=self.groupBox)
        self.label_3.setGeometry(QtCore.QRect(30, 80, 47, 14))
        self.label_3.setObjectName("label_3")
        self.dateEditExpiredDate = QtWidgets.QDateEdit(parent=self.groupBox)
        self.dateEditExpiredDate.setGeometry(QtCore.QRect(110, 110, 110, 22))
        self.dateEditExpiredDate.setCalendarPopup(True)
        self.dateEditExpiredDate.setDate(QtCore.QDate(2023, 1, 1))
        self.dateEditExpiredDate.setObjectName("dateEditExpiredDate")
        self.label_4 = QtWidgets.QLabel(parent=self.groupBox)
        self.label_4.setGeometry(QtCore.QRect(30, 110, 71, 16))
        self.label_4.setObjectName("label_4")
        self.chkFreeTax = QtWidgets.QCheckBox(parent=self.groupBox)
        self.chkFreeTax.setGeometry(QtCore.QRect(110, 140, 151, 18))
        self.chkFreeTax.setObjectName("chkFreeTax")
        self.groupBox_2 = QtWidgets.QGroupBox(parent=self.centralwidget)
        self.groupBox_2.setGeometry(QtCore.QRect(10, 240, 441, 241))
        self.groupBox_2.setStyleSheet("background-color: rgb(255, 213, 255);")
        self.groupBox_2.setObjectName("groupBox_2")
        self.verticalLayout = QtWidgets.QVBoxLayout(self.groupBox_2)
        self.verticalLayout.setObjectName("verticalLayout")
        self.listWidgetProduct = QtWidgets.QListWidget(parent=self.groupBox_2)
        self.listWidgetProduct.setStyleSheet("")
        self.listWidgetProduct.setObjectName("listWidgetProduct")
        self.verticalLayout.addWidget(self.listWidgetProduct)
        self.label_5 = QtWidgets.QLabel(parent=self.centralwidget)
        self.label_5.setGeometry(QtCore.QRect(10, 0, 441, 31))
        font = QtGui.QFont()
        font.setPointSize(15)
        font.setBold(True)
        font.setWeight(75)
        self.label_5.setFont(font)
        self.label_5.setStyleSheet("color: rgb(0, 0, 127);")
        self.label_5.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
        self.label_5.setObjectName("label_5")
        self.groupBox_3 = QtWidgets.QGroupBox(parent=self.centralwidget)
        self.groupBox_3.setGeometry(QtCore.QRect(10, 180, 441, 61))
        self.groupBox_3.setStyleSheet("background-color: rgb(255, 254, 225);")
        self.groupBox_3.setTitle("")
        self.groupBox_3.setObjectName("groupBox_3")
        self.pushButtonNew = QtWidgets.QPushButton(parent=self.groupBox_3)
        self.pushButtonNew.setGeometry(QtCore.QRect(50, 10, 75, 41))
        self.pushButtonNew.setStyleSheet("background-color: rgb(170, 255, 255);")
        icon1 = QtGui.QIcon()
        icon1.addPixmap(QtGui.QPixmap("images/ic_add.png"), QtGui.QIcon.Mode.Normal, QtGui.QIcon.State.Off)
        self.pushButtonNew.setIcon(icon1)
        self.pushButtonNew.setIconSize(QtCore.QSize(32, 32))
        self.pushButtonNew.setObjectName("pushButtonNew")
        self.pushButtonSave = QtWidgets.QPushButton(parent=self.groupBox_3)
        self.pushButtonSave.setGeometry(QtCore.QRect(180, 10, 75, 41))
        self.pushButtonSave.setStyleSheet("background-color: rgb(170, 255, 255);")
        icon2 = QtGui.QIcon()
        icon2.addPixmap(QtGui.QPixmap("images/ic_save.png"), QtGui.QIcon.Mode.Normal, QtGui.QIcon.State.Off)
        self.pushButtonSave.setIcon(icon2)
        self.pushButtonSave.setIconSize(QtCore.QSize(32, 32))
        self.pushButtonSave.setObjectName("pushButtonSave")
        self.pushButtonDelete = QtWidgets.QPushButton(parent=self.groupBox_3)
        self.pushButtonDelete.setGeometry(QtCore.QRect(310, 10, 91, 41))
        self.pushButtonDelete.setStyleSheet("background-color: rgb(170, 255, 255);")
        icon3 = QtGui.QIcon()
        icon3.addPixmap(QtGui.QPixmap("images/ic_remove.png"), QtGui.QIcon.Mode.Normal, QtGui.QIcon.State.Off)
        self.pushButtonDelete.setIcon(icon3)
        self.pushButtonDelete.setIconSize(QtCore.QSize(32, 32))
        self.pushButtonDelete.setObjectName("pushButtonDelete")
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(parent=MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 457, 22))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(parent=MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "Trần Duy Thanh - Food Management"))
        self.groupBox.setTitle(_translate("MainWindow", "Product Detail:"))
        self.label.setText(_translate("MainWindow", "ID:"))
        self.label_2.setText(_translate("MainWindow", "Name:"))
        self.label_3.setText(_translate("MainWindow", "Price:"))
        self.label_4.setText(_translate("MainWindow", "Expired Date:"))
        self.chkFreeTax.setText(_translate("MainWindow", "Free Tax"))
        self.groupBox_2.setTitle(_translate("MainWindow", "List of Products"))
        self.label_5.setText(_translate("MainWindow", "Food Management"))
        self.pushButtonNew.setText(_translate("MainWindow", "New"))
        self.pushButtonSave.setText(_translate("MainWindow", "Save"))
        self.pushButtonDelete.setText(_translate("MainWindow", "Delete"))

import datetime

from PyQt6.QtCore import Qt
from PyQt6.QtGui import QIcon
from PyQt6.QtWidgets import QListWidgetItem, QMessageBox

from FileFactory import FileFactory
from MainWindow import Ui_MainWindow
from Product import Product

class MainWindowEx(Ui_MainWindow):
    def __init__(self):
        self.arrData=[]
        self.fileFactory=FileFactory()

def setupUi(self, MainWindow):
    super().setupUi(MainWindow)
    self.MainWindow=MainWindow
    self.arrData = self.fileFactory.readData("database.json", Product)
    self.showProductIntoQListWidget()
    self.pushButtonNew.clicked.connect(self.processNew)
    self.pushButtonSave.clicked.connect(self.processSave)        
    self.pushButtonDelete.clicked.connect(self.processDelete)
    self.listWidgetProduct.itemSelectionChanged.connect(self.processItemSelection)

def showProductIntoQListWidget(self):
    self.listWidgetProduct.clear()
    for product in self.arrData:
        item=QListWidgetItem()
        item.setData(Qt.ItemDataRole.UserRole, product)
        item.setText(str(product))
        item.setCheckState(Qt.CheckState.Unchecked)
        if product.FreeTax==True:
            item.setIcon(QIcon("images/ic_tax.png"))
        else:
            item.setIcon(QIcon("images/ic_tax_including.png"))
        if isinstance(product.ExpiredDate,str):
            product.ExpiredDate=datetime.date.fromisoformat(product.ExpiredDate)
        day=(product.ExpiredDate-datetime.date.today()).days
        if day<=7:
            item.setForeground(Qt.GlobalColor.red)
        self.listWidgetProduct.addItem(item)

def processNew(self):
    self.lineEditId.setText("")
    self.lineEditName.setText("")
    self.lineEditPrice.setText("")
    self.chkFreeTax.setCheckState(Qt.CheckState.Unchecked)
    self.lineEditId.setFocus()

def processSave(self):
    id=self.lineEditId.text()
    name=self.lineEditName.text()
    price=float(self.lineEditPrice.text())
    date=self.dateEditExpiredDate.date().toPyDate()
    freeTax=self.chkFreeTax.isChecked()
    newItem = Product(id,name, price, date,freeTax)
    oldItem=self.checkDuplicate(id)
    if oldItem !=None:
        index = self.arrData.index(oldItem)
        self.arrData[index]=newItem
    else:
        self.arrData.append(newItem)
    self.showProductIntoQListWidget()
    self.fileFactory.writeData("database.json",self.arrData)

def checkDuplicate(self,id):
    items=[x for x in self.arrData if x.ProductId == id]
    if len(items)==0:
        return None
    return items[0]

def processDelete(self):
    answer = QMessageBox.question(
        self.MainWindow,
        'Confirmation',
        'Do you want to remove checked Items?',
        QMessageBox.StandardButton.Yes |
        QMessageBox.StandardButton.No
    )
    if answer == QMessageBox.StandardButton.No:
        return
    for index in range(self.listWidgetProduct.count()):
        item=self.listWidgetProduct.item(index)
        if item.checkState()==Qt.CheckState.Checked:
            product=item.data(Qt.ItemDataRole.UserRole)
            self.arrData.remove(product)
    self.showProductIntoQListWidget()
    self.fileFactory.writeData("database.json", self.arrData)

def processItemSelection(self):
    row=self.listWidgetProduct.currentRow()
    item=self.listWidgetProduct.item(row)
    product=item.data(Qt.ItemDataRole.UserRole)
    self.lineEditId.setText(str(product.ProductId))
    self.lineEditName.setText(product.ProductName)
    self.lineEditPrice.setText(str(product.Price))
    if isinstance(product.ExpiredDate, str):
        product.ExpiredDate = datetime.date.fromisoformat(product.ExpiredDate)
    self.dateEditExpiredDate.setDate(product.ExpiredDate)
    if product.FreeTax:
        self.chkFreeTax.setCheckState(Qt.CheckState.Checked)
    else:
        self.chkFreeTax.setCheckState(Qt.CheckState.Unchecked)

import datetime

from PyQt6.QtCore import Qt
from PyQt6.QtGui import QIcon
from PyQt6.QtWidgets import QListWidgetItem, QMessageBox

from FileFactory import FileFactory
from MainWindow import Ui_MainWindow
from Product import Product

class MainWindowEx(Ui_MainWindow):
    def __init__(self):
        self.arrData=[]
        self.fileFactory=FileFactory()
    def setupUi(self, MainWindow):
        super().setupUi(MainWindow)
        self.MainWindow=MainWindow
        self.arrData = self.fileFactory.readData("database.json", Product)
        self.showProductIntoQListWidget()
        self.pushButtonNew.clicked.connect(self.processNew)
        self.pushButtonSave.clicked.connect(self.processSave)
        self.pushButtonDelete.clicked.connect(self.processDelete)
        self.listWidgetProduct.itemSelectionChanged.connect(self.processItemSelection)
    def showProductIntoQListWidget(self):
        self.listWidgetProduct.clear()
        for product in self.arrData:
            item=QListWidgetItem()
            item.setData(Qt.ItemDataRole.UserRole, product)
            item.setText(str(product))
            item.setCheckState(Qt.CheckState.Unchecked)
            if product.FreeTax==True:
                item.setIcon(QIcon("images/ic_tax.png"))
            else:
                item.setIcon(QIcon("images/ic_tax_including.png"))
            if isinstance(product.ExpiredDate,str):
                product.ExpiredDate=datetime.date.fromisoformat(product.ExpiredDate)
            day=(product.ExpiredDate-datetime.date.today()).days
            if day<=7:
                item.setForeground(Qt.GlobalColor.red)
            self.listWidgetProduct.addItem(item)
    def processNew(self):
        self.lineEditId.setText("")
        self.lineEditName.setText("")
        self.lineEditPrice.setText("")
        self.chkFreeTax.setCheckState(Qt.CheckState.Unchecked)
        self.lineEditId.setFocus()
    def checkDuplicate(self,id):
        items=[x for x in self.arrData if x.ProductId == id]
        if len(items)==0:
            return None
        return items[0]
    def processSave(self):
        id=self.lineEditId.text()
        name=self.lineEditName.text()
        price=float(self.lineEditPrice.text())
        date=self.dateEditExpiredDate.date().toPyDate()
        freeTax=self.chkFreeTax.isChecked()
        newItem = Product(id,name, price, date,freeTax)
        oldItem=self.checkDuplicate(id)
        if oldItem !=None:
            index = self.arrData.index(oldItem)
            self.arrData[index]=newItem
        else:
            self.arrData.append(newItem)
        self.showProductIntoQListWidget()
        self.fileFactory.writeData("database.json",self.arrData)
    def processDelete(self):
        answer = QMessageBox.question(
            self.MainWindow,
            'Confirmation',
            'Do you want to remove checked Items?',
            QMessageBox.StandardButton.Yes |
            QMessageBox.StandardButton.No
        )
        if answer == QMessageBox.StandardButton.No:
            return
        for index in range(self.listWidgetProduct.count()):
            item=self.listWidgetProduct.item(index)
            if item.checkState()==Qt.CheckState.Checked:
                product=item.data(Qt.ItemDataRole.UserRole)
                self.arrData.remove(product)
        self.showProductIntoQListWidget()
        self.fileFactory.writeData("database.json", self.arrData)
    def processItemSelection(self):
        row=self.listWidgetProduct.currentRow()
        item=self.listWidgetProduct.item(row)
        product=item.data(Qt.ItemDataRole.UserRole)
        self.lineEditId.setText(str(product.ProductId))
        self.lineEditName.setText(product.ProductName)
        self.lineEditPrice.setText(str(product.Price))
        if isinstance(product.ExpiredDate, str):
            product.ExpiredDate = datetime.date.fromisoformat(product.ExpiredDate)
        self.dateEditExpiredDate.setDate(product.ExpiredDate)
        if product.FreeTax:
            self.chkFreeTax.setCheckState(Qt.CheckState.Checked)
        else:
            self.chkFreeTax.setCheckState(Qt.CheckState.Unchecked)
    def show(self):
        self.MainWindow.show()

from PyQt6.QtWidgets import QApplication, QMainWindow

from MainWindowEx import MainWindowEx

app=QApplication([])
myWindow=MainWindowEx()
myWindow.setupUi(QMainWindow())
myWindow.show()
app.exec()

class Employee:
    def __init__(self,name,email,gender):
        self.name=name
        self.email=email
        self.gender=gender
    def __str__(self):
        if self.gender==True:
            return self.name+" - "+self.email +"(Woman)"
        else:
            return self.name + " - " + self.email + "(Man)"

# Form implementation generated from reading ui file 'MainWindow.ui'
#
# Created by: PyQt6 UI code generator 6.5.2
#
# WARNING: Any manual changes made to this file will be lost when pyuic6 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt6 import QtCore, QtGui, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(490, 528)
        font = QtGui.QFont()
        font.setPointSize(12)
        MainWindow.setFont(font)
        icon = QtGui.QIcon()
        icon.addPixmap(QtGui.QPixmap("images/ic_logo.jpg"), QtGui.QIcon.Mode.Normal, QtGui.QIcon.State.Off)
        MainWindow.setWindowIcon(icon)
        self.centralwidget = QtWidgets.QWidget(parent=MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.groupBox = QtWidgets.QGroupBox(parent=self.centralwidget)
        self.groupBox.setGeometry(QtCore.QRect(20, 40, 451, 121))
        self.groupBox.setObjectName("groupBox")
        self.label = QtWidgets.QLabel(parent=self.groupBox)
        self.label.setGeometry(QtCore.QRect(20, 30, 71, 16))
        self.label.setObjectName("label")
        self.lineEditName = QtWidgets.QLineEdit(parent=self.groupBox)
        self.lineEditName.setGeometry(QtCore.QRect(120, 30, 311, 22))
        self.lineEditName.setObjectName("lineEditName")
        self.lineEditEmail = QtWidgets.QLineEdit(parent=self.groupBox)
        self.lineEditEmail.setGeometry(QtCore.QRect(120, 60, 311, 22))
        self.lineEditEmail.setObjectName("lineEditEmail")
        self.label_2 = QtWidgets.QLabel(parent=self.groupBox)
        self.label_2.setGeometry(QtCore.QRect(20, 60, 71, 16))
        self.label_2.setObjectName("label_2")
        self.radWoman = QtWidgets.QRadioButton(parent=self.groupBox)
        self.radWoman.setGeometry(QtCore.QRect(120, 90, 95, 20))
        self.radWoman.setChecked(True)
        self.radWoman.setObjectName("radWoman")
        self.radMan = QtWidgets.QRadioButton(parent=self.groupBox)
        self.radMan.setGeometry(QtCore.QRect(260, 90, 95, 20))
        self.radMan.setObjectName("radMan")
        self.groupBox_2 = QtWidgets.QGroupBox(parent=self.centralwidget)
        self.groupBox_2.setGeometry(QtCore.QRect(20, 230, 451, 241))
        self.groupBox_2.setObjectName("groupBox_2")
        self.verticalLayout = QtWidgets.QVBoxLayout(self.groupBox_2)
        self.verticalLayout.setObjectName("verticalLayout")
        self.listWidgetEmployee = QtWidgets.QListWidget(parent=self.groupBox_2)
        self.listWidgetEmployee.setObjectName("listWidgetEmployee")
        self.verticalLayout.addWidget(self.listWidgetEmployee)
        self.groupBox_3 = QtWidgets.QGroupBox(parent=self.centralwidget)
        self.groupBox_3.setGeometry(QtCore.QRect(20, 160, 451, 71))
        self.groupBox_3.setObjectName("groupBox_3")
        self.pushButtonNew = QtWidgets.QPushButton(parent=self.groupBox_3)
        self.pushButtonNew.setGeometry(QtCore.QRect(10, 20, 81, 41))
        icon1 = QtGui.QIcon()
        icon1.addPixmap(QtGui.QPixmap("images/ic_add.png"), QtGui.QIcon.Mode.Normal, QtGui.QIcon.State.Off)
        self.pushButtonNew.setIcon(icon1)
        self.pushButtonNew.setObjectName("pushButtonNew")
        self.pushButtonSave = QtWidgets.QPushButton(parent=self.groupBox_3)
        self.pushButtonSave.setGeometry(QtCore.QRect(110, 20, 91, 41))
        icon2 = QtGui.QIcon()
        icon2.addPixmap(QtGui.QPixmap("images/ic_save.png"), QtGui.QIcon.Mode.Normal, QtGui.QIcon.State.Off)
        self.pushButtonSave.setIcon(icon2)
        self.pushButtonSave.setObjectName("pushButtonSave")
        self.pushButtonDelete = QtWidgets.QPushButton(parent=self.groupBox_3)
        self.pushButtonDelete.setGeometry(QtCore.QRect(230, 20, 91, 41))
        icon3 = QtGui.QIcon()
        icon3.addPixmap(QtGui.QPixmap("images/ic_delete.png"), QtGui.QIcon.Mode.Normal, QtGui.QIcon.State.Off)
        self.pushButtonDelete.setIcon(icon3)
        self.pushButtonDelete.setObjectName("pushButtonDelete")
        self.pushButtonClose = QtWidgets.QPushButton(parent=self.groupBox_3)
        self.pushButtonClose.setGeometry(QtCore.QRect(340, 20, 91, 41))
        icon4 = QtGui.QIcon()
        icon4.addPixmap(QtGui.QPixmap("images/ic_close.png"), QtGui.QIcon.Mode.Normal, QtGui.QIcon.State.Off)
        self.pushButtonClose.setIcon(icon4)
        self.pushButtonClose.setObjectName("pushButtonClose")
        self.label_3 = QtWidgets.QLabel(parent=self.centralwidget)
        self.label_3.setGeometry(QtCore.QRect(50, 0, 411, 31))
        font = QtGui.QFont()
        font.setPointSize(13)
        font.setBold(True)
        font.setWeight(75)
        self.label_3.setFont(font)
        self.label_3.setStyleSheet("color: rgb(0, 0, 127);")
        self.label_3.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
        self.label_3.setObjectName("label_3")
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(parent=MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 490, 22))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(parent=MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)
        MainWindow.setTabOrder(self.lineEditName, self.lineEditEmail)
        MainWindow.setTabOrder(self.lineEditEmail, self.radWoman)
        MainWindow.setTabOrder(self.radWoman, self.radMan)
        MainWindow.setTabOrder(self.radMan, self.pushButtonNew)
        MainWindow.setTabOrder(self.pushButtonNew, self.pushButtonSave)
        MainWindow.setTabOrder(self.pushButtonSave, self.pushButtonDelete)
        MainWindow.setTabOrder(self.pushButtonDelete, self.pushButtonClose)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "Trần Duy Thanh - Employee Demo"))
        self.groupBox.setTitle(_translate("MainWindow", "Employee Information:"))
        self.label.setText(_translate("MainWindow", "Name:"))
        self.label_2.setText(_translate("MainWindow", "Email:"))
        self.radWoman.setText(_translate("MainWindow", "Woman"))
        self.radMan.setText(_translate("MainWindow", "Man"))
        self.groupBox_2.setTitle(_translate("MainWindow", "List of Employee:"))
        self.groupBox_3.setTitle(_translate("MainWindow", "Action:"))
        self.pushButtonNew.setText(_translate("MainWindow", "New"))
        self.pushButtonSave.setText(_translate("MainWindow", "Save"))
        self.pushButtonDelete.setText(_translate("MainWindow", "Delete"))
        self.pushButtonClose.setText(_translate("MainWindow", "Close"))
        self.label_3.setText(_translate("MainWindow", "Employee Management"))

self.pushButtonNew.clicked.connect(self.processNew)

def processNew(self):
    self.lineEditName.setText("")
    self.lineEditEmail.setText("")
    self.lineEditName.setFocus()

def writeEmployeeToJson(self):
    dataset=[]
    for i in range(0,self.listWidgetEmployee.count()):
        item=self.listWidgetEmployee.item(i)
        emp=item.data(Qt.ItemDataRole.UserRole)
        dataset.append(emp)
    jsonString=json.dumps([emp.__dict__ for emp in dataset])
    jsonFile=open("database.json", "w")
    jsonFile.write(jsonString)
    jsonFile.close()

[{"name": "Albert Einstein", "email": "Einstein@gmail.com", "gender": false}, {"name": "Isaac Newton", "email": "newton@hotmail.com", "gender": false}, {"name": "Marie Curie", "email": "Curie@gmail.com", "gender": true}, {"name": "Jane Goodall", "email": "Goodall@gmail.com", "gender": true}, {"name": "Stephen Hawking", "email": "hawking@uel.edu.vn", "gender": false}, {"name": "Aristotle", "email": "Aristotle@uel.edu.vn", "gender": false}, {"name": "Thomas Edison", "email": "Edison@uel.edu.vn", "gender": false}, {"name": "Barbara McClintock", "email": "Barbara@uel.edu.vn", "gender": true}]

def readEmployeeFromJson(self):
    if os.path.isfile("database.json") ==False:
        return
    file = open('database.json', "r")
    # Reading from file
    self.dataset = json.loads(file.read(), object_hook=lambda d: Employee(**d))
    file.close()
    for emp in self.dataset:
        item = QListWidgetItem()
        item.setData(Qt.ItemDataRole.UserRole, emp)
        item.setText(str(emp))
        item.setCheckState(Qt.CheckState.Unchecked)
        if emp.gender==True:
            item.setIcon(QIcon("images/ic_woman.png"))
        else:
            item.setIcon(QIcon("images/ic_man.png"))
        self.listWidgetEmployee.addItem(item)

self.pushButtonSave.clicked.connect(self.processSave)

def processSave(self):
    insertEmployee=Employee(self.lineEditName.text(),self.lineEditEmail.text(),self.radWoman.isChecked())
    isDuplicated=False
    for i in range(0,self.listWidgetEmployee.count()):
        item=self.listWidgetEmployee.item(i)
        data=item.data(Qt.ItemDataRole.UserRole)
        if insertEmployee.email.lower()==data.email.lower():
            isDuplicated=True
            break
    if not isDuplicated:
        item=QListWidgetItem()
    item.setData(Qt.ItemDataRole.UserRole,insertEmployee)
    item.setText(str(insertEmployee))
    item.setCheckState(Qt.CheckState.Unchecked)
    if self.radWoman.isChecked():
        item.setIcon(QIcon("images/ic_woman.png"))
    else:
        item.setIcon(QIcon("images/ic_man.png"))
    if not isDuplicated:
        self.listWidgetEmployee.addItem(item)
    self.writeEmployeeToJson()

def processDelete(self):
    answer = QMessageBox.question(
        self.MainWindow,
        'Confirmation',
        'Do you want to remove checked Items?',
        QMessageBox.StandardButton.Yes |
        QMessageBox.StandardButton.No
    )
    if answer == QMessageBox.StandardButton.No:
        return
    for index in range(self.listWidgetEmployee.count()-1,-1,-1):
        item=self.listWidgetEmployee.item(index)
        if item.checkState()==Qt.CheckState.Checked:
            current_item = self.listWidgetEmployee.takeItem(index)
            del current_item
    self.processNew()
    self.writeEmployeeToJson()

self.pushButtonClose.clicked.connect(self.processClose)

def processClose(self):
    msg = QMessageBox()
    msg.setText(f"Are you sure you want to exit ?")
    msg.setWindowTitle("Exit Confirmation")
    msg.setIcon(QMessageBox.Icon.Question)
    buttons = QMessageBox.StandardButton.Yes | QMessageBox.StandardButton.No
    msg.setStandardButtons(buttons)
    result = msg.exec()
    if result == QMessageBox.StandardButton.Yes:
       self.MainWindow.close()

self.listWidgetEmployee.itemSelectionChanged.connect(self.processItemSelectionChanged)

def processItemSelectionChanged(self):
    current_row=self.listWidgetEmployee.currentRow()
    if current_row<0:
        return
    item=self.listWidgetEmployee.item(current_row)
    emp=item.data(Qt.ItemDataRole.UserRole)
    self.lineEditName.setText(emp.name)
    self.lineEditEmail.setText(emp.email)
    if emp.gender==True:
        self.radWoman.setChecked(True)
    else:
        self.radMan.setChecked(True)

import json
from PyQt6.QtCore import Qt
from PyQt6.QtGui import QIcon
from PyQt6.QtWidgets import QListWidgetItem, QMessageBox

from Employee import Employee
from MainWindow import Ui_MainWindow
import os.path

class MainWindowEx(Ui_MainWindow):
    def __init__(self):
        self.dataset=[]
    def setupUi(self, MainWindow):
        super().setupUi(MainWindow)
        self.MainWindow=MainWindow
        self.pushButtonNew.clicked.connect(self.processNew)
        self.pushButtonSave.clicked.connect(self.processSave)
        self.listWidgetEmployee.itemSelectionChanged.connect(self.processItemSelectionChanged)
        self.pushButtonDelete.clicked.connect(self.processDelete)
        self.pushButtonClose.clicked.connect(self.processClose)
        self.readEmployeeFromJson()
    def show(self):
        self.MainWindow.show()
    def processNew(self):
        self.lineEditName.setText("")
        self.lineEditEmail.setText("")
        self.lineEditName.setFocus()
    def processSave(self):
        insertEmployee=Employee(self.lineEditName.text(),self.lineEditEmail.text(),self.radWoman.isChecked())
        isDuplicated=False
        for i in range(0,self.listWidgetEmployee.count()):
            item=self.listWidgetEmployee.item(i)
            data=item.data(Qt.ItemDataRole.UserRole)
            if insertEmployee.email.lower()==data.email.lower():
                isDuplicated=True
                break
        if not isDuplicated:
            item=QListWidgetItem()
        item.setData(Qt.ItemDataRole.UserRole,insertEmployee)
        item.setText(str(insertEmployee))
        item.setCheckState(Qt.CheckState.Unchecked)
        if self.radWoman.isChecked():
            item.setIcon(QIcon("images/ic_woman.png"))
        else:
            item.setIcon(QIcon("images/ic_man.png"))
        if not isDuplicated:
            self.listWidgetEmployee.addItem(item)
        self.writeEmployeeToJson()
    def processItemSelectionChanged(self):
        current_row=self.listWidgetEmployee.currentRow()
        if current_row<0:
            return
        item=self.listWidgetEmployee.item(current_row)
        emp=item.data(Qt.ItemDataRole.UserRole)
        self.lineEditName.setText(emp.name)
        self.lineEditEmail.setText(emp.email)
        if emp.gender==True:
            self.radWoman.setChecked(True)
        else:
            self.radMan.setChecked(True)
    def processDelete(self):
        answer = QMessageBox.question(
            self.MainWindow,
            'Confirmation',
            'Do you want to remove checked Items?',
            QMessageBox.StandardButton.Yes |
            QMessageBox.StandardButton.No
        )
        if answer == QMessageBox.StandardButton.No:
            return
        for index in range(self.listWidgetEmployee.count()-1,-1,-1):
            item=self.listWidgetEmployee.item(index)
            if item.checkState()==Qt.CheckState.Checked:
                current_item = self.listWidgetEmployee.takeItem(index)
                del current_item
        self.processNew()
        self.writeEmployeeToJson()
    def processClose(self):
        msg = QMessageBox()
        msg.setText(f"Are you sure you want to exit ?")
        msg.setWindowTitle("Exit Confirmation")
        msg.setIcon(QMessageBox.Icon.Question)
        buttons = QMessageBox.StandardButton.Yes | QMessageBox.StandardButton.No
        msg.setStandardButtons(buttons)
        result = msg.exec()
        if result == QMessageBox.StandardButton.Yes:
           self.MainWindow.close()
    def writeEmployeeToJson(self):
        dataset=[]
        for i in range(0,self.listWidgetEmployee.count()):
            item=self.listWidgetEmployee.item(i)
            emp=item.data(Qt.ItemDataRole.UserRole)
            dataset.append(emp)
        jsonString=json.dumps([emp.__dict__ for emp in dataset])
        jsonFile=open("database.json", "w")
        jsonFile.write(jsonString)
        jsonFile.close()
    def readEmployeeFromJson(self):
        if os.path.isfile("database.json") ==False:
            return
        file = open('database.json', "r")
        # Reading from file
        self.dataset = json.loads(file.read(), object_hook=lambda d: Employee(**d))
        file.close()
        for emp in self.dataset:
            item = QListWidgetItem()
            item.setData(Qt.ItemDataRole.UserRole, emp)
            item.setText(str(emp))
            item.setCheckState(Qt.CheckState.Unchecked)
            if emp.gender==True:
                item.setIcon(QIcon("images/ic_woman.png"))
            else:
                item.setIcon(QIcon("images/ic_man.png"))
            self.listWidgetEmployee.addItem(item)

from PyQt6.QtWidgets import QApplication, QMainWindow

from MainWindowEx import MainWindowEx

app=QApplication([])
myWindow=MainWindowEx()
myWindow.setupUi(QMainWindow())
myWindow.show()
app.exec()

self.list_widget = QListWidget(self)

self.list_widget.addItems(["Learn Python","Machine Learning","Deep Learning"])
self.list_widget.addItem("Smart Contract")

item=QListWidgetItem()
item.setText("Metaverse")
item.setIcon(QIcon("images/ic_metaverse.png"))
item.setForeground(Qt.GlobalColor.red)
item.setBackground(Qt.GlobalColor.yellow)
self.list_widget.addItem(item)

item="Value or QListWidgetItem"
current_row = self.list_widget.currentRow()
self.list_widget.insertItem(current_row+1, item)

updatedItem=self.list_widget.item(0)
updatedItem.setText("New value for item at row 0")

current_row = self.list_widget.currentRow()
if current_row >= 0:
    current_item = self.list_widget.takeItem(current_row)
    del current_item

self.list_widget.clear()

import sys

from PyQt6.QtCore import Qt
from PyQt6.QtWidgets import QInputDialog, QApplication, QWidget, QGridLayout, QListWidget, QPushButton, QLabel, \
    QListWidgetItem
from PyQt6.QtGui import QIcon

class MainWindow(QWidget):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)

        self.setWindowTitle('QListWidget Demo')
        self.setWindowIcon(QIcon('images/ic_logo.jpg'))
        self.setGeometry(100, 100, 400, 100)

        layout = QGridLayout(self)
        self.setLayout(layout)

        self.list_widget = QListWidget(self)
        #Create a QListWidgetItem and set the attributes
        newItem = QListWidgetItem()
        newItem.setText("Metaverse")
        newItem.setIcon(QIcon('images/ic_metaverse.png'))
        newItem.setForeground(Qt.GlobalColor.red)
        newItem.setBackground(Qt.GlobalColor.yellow)
        #add new QListWidgetItem
        self.list_widget.addItem(newItem)

        #add a text for a new QlistWidgetItem
        self.list_widget.addItem("Smart Contract")
        #get item at row 1 and set icon for this Item
        self.list_widget.item(1).setIcon(QIcon('images/ic_smartcontract.png'))
        #add an array for QListWidget
        self.list_widget.addItems(["Learn Python", "Machine Learning", "Deep Learning"])

        layout.addWidget(self.list_widget, 0, 0, 5, 1)
        # create buttons and do signals and slots for QPushButton action:
        add_button = QPushButton('Add New Item')
        add_button.clicked.connect(self.addItem)

        update_button = QPushButton('Update Item')
        update_button.clicked.connect(self.updateItem)

        insert_button = QPushButton('Insert New Item')
        insert_button.clicked.connect(self.insertItem)

        remove_button = QPushButton('Remove Selected Item')
        remove_button.clicked.connect(self.removeItem)

        clear_button = QPushButton('Clear All')
        clear_button.clicked.connect(self.clearAll)

        layout.addWidget(add_button, 0, 1)
        layout.addWidget(update_button, 1, 1)
        layout.addWidget(insert_button, 2, 1)
        layout.addWidget(remove_button, 3, 1)
        layout.addWidget(clear_button, 4, 1)
        #mouse and key signal for QListWidget
        self.list_widget.itemClicked.connect(self.processItemClicked)
        self.list_widget.itemDoubleClicked.connect(self.processItemDoubleClicked)
        #Signal listener user selected the item
        self.list_widget.itemSelectionChanged.connect(self.processItemSelectionChanged)
        # show the window
        self.show()
    #slot to show text of selected item into the title of Window
    def processItemSelectionChanged(self):
        current_row = self.list_widget.currentRow()
        item = self.list_widget.item(current_row)
        self.setWindowTitle(item.text())
    #slot show the update ui:
    def processItemDoubleClicked(self):
        self.updateItem()
    #slot for clicking the item
    def processItemClicked(self):
        current_row = self.list_widget.currentRow()
        data = self.list_widget.item(current_row)
        print("itemClicked=",data.text())
    #slot to show Adding new Item for QListWidget, using QInputDialog
    def addItem(self):
        text, ok = QInputDialog.getText(self, 'Add a New Data', 'New Data:')
        if ok and text:
            self.list_widget.addItem(text)

    # slot to show Updating selected Item for QListWidget, using QInputDialog
    def updateItem(self):
        current_row = self.list_widget.currentRow()
        if current_row >= 0:
            item = self.list_widget.item(current_row)
            text, ok = QInputDialog.getText(self, 'Update Data', 'New Data:',text=item.text())
            if ok and text:
                item.setText(text)

    # slot to show Inserting a new Item for QListWidget, using QInputDialog
    def insertItem(self):
        text, ok = QInputDialog.getText(self, 'Insert a New Data', 'New Data:')
        if ok and text:
            current_row = self.list_widget.currentRow()
            self.list_widget.insertItem(current_row+1, text)
    #slot to remove selected item
    def removeItem(self):
        current_row = self.list_widget.currentRow()
        if current_row >= 0:
            current_item = self.list_widget.takeItem(current_row)
            del current_item
    #slot to remove all item from QListWidget
    def clearAll(self):
        self.list_widget.clear()

if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = MainWindow()
    sys.exit(app.exec())

#Create a QListWidgetItem and set the attributes
newItem = QListWidgetItem()
newItem.setText("Metaverse")
newItem.setIcon(QIcon('images/ic_metaverse.png'))
newItem.setForeground(Qt.GlobalColor.red)
newItem.setBackground(Qt.GlobalColor.yellow)
#add new QListWidgetItem
self.list_widget.addItem(newItem)

#add a text for a new QlistWidgetItem
self.list_widget.addItem("Smart Contract")
#get item at row 1 and set icon for this Item
self.list_widget.item(1).setIcon(QIcon('images/ic_smartcontract.png'))

#add an array for QListWidget
self.list_widget.addItems(["Learn Python", "Machine Learning", "Deep Learning"])

add_button.clicked.connect(self.addItem)

#slot to show Adding new Item for QListWidget, using QInputDialog
def addItem(self):
    text, ok = QInputDialog.getText(self, 'Add a New Data', 'New Data:')
    if ok and text:
        self.list_widget.addItem(text)

update_button.clicked.connect(self.updateItem)

# slot to show Updating selected Item for QListWidget, using QInputDialog
def updateItem(self):
    current_row = self.list_widget.currentRow()
    if current_row >= 0:
        item = self.list_widget.item(current_row)
        text, ok = QInputDialog.getText(self, 'Update Data', 'New Data:',text=item.text())
        if ok and text:
            item.setText(text)

insert_button.clicked.connect(self.insertItem)

# slot to show Inserting a new Item for QListWidget, using QInputDialog
def insertItem(self):
    text, ok = QInputDialog.getText(self, 'Insert a New Data', 'New Data:')
    if ok and text:
        current_row = self.list_widget.currentRow()
        self.list_widget.insertItem(current_row+1, text)

remove_button.clicked.connect(self.removeItem)

#slot to remove selected item
def removeItem(self):
    current_row = self.list_widget.currentRow()
    if current_row >= 0:
        current_item = self.list_widget.takeItem(current_row)
        del current_item

#slot to remove selected item
def removeItem(self):
    current_row = self.list_widget.currentRow()
    if current_row >= 0:
        item=self.list_widget.item(current_row)
        msg=QMessageBox()
        msg.setText(f"Are you sure you want to remove {item.text()}?")
        msg.setWindowTitle("Removing Confirmation")
        msg.setIcon(QMessageBox.Icon.Question)
        buttons=QMessageBox.StandardButton.Yes|QMessageBox.StandardButton.No
        msg.setStandardButtons(buttons)
        result= msg.exec()
        if result==QMessageBox.StandardButton.Yes:
            current_item = self.list_widget.takeItem(current_row)
            del current_item

clear_button.clicked.connect(self.clearAll)

#slot to remove all item from QListWidget
def clearAll(self):
    self.list_widget.clear()

#slot to remove all item from QListWidget
def clearAll(self):
    answer = QMessageBox.question(
        self,
        'Confirmation',
        'Do you want to clear all Data?',
        QMessageBox.StandardButton.Yes |
        QMessageBox.StandardButton.No
    )
    if answer == QMessageBox.StandardButton.Yes:
        self.list_widget.clear()

self.list_widget.itemClicked.connect(self.processItemClicked)
self.list_widget.itemSelectionChanged.connect(self.processItemSelectionChanged)

#slot to show text of selected item into the title of Window
def processItemSelectionChanged(self):
    current_row = self.list_widget.currentRow()
    item = self.list_widget.item(current_row)
    self.setWindowTitle(item.text())

#slot for clicking the item
def processItemClicked(self):
    current_row = self.list_widget.currentRow()
    data = self.list_widget.item(current_row)
    print("itemClicked=",data.text())

self.list_widget.itemDoubleClicked.connect(self.processItemDoubleClicked)

#slot show the update ui:
def processItemDoubleClicked(self):
    self.updateItem()

import sys

from PyQt6.QtCore import Qt
from PyQt6.QtWidgets import QInputDialog, QApplication, QWidget, QGridLayout, QListWidget, QPushButton, QLabel, \
    QListWidgetItem, QMessageBox
from PyQt6.QtGui import QIcon

class MainWindow(QWidget):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)

        self.setWindowTitle('QListWidget Demo')
        self.setWindowIcon(QIcon('images/ic_logo.jpg'))
        self.setGeometry(100, 100, 400, 100)

        layout = QGridLayout(self)
        self.setLayout(layout)

        self.list_widget = QListWidget(self)
        #Create a QListWidgetItem and set the attributes
        newItem = QListWidgetItem()
        newItem.setText("Metaverse")
        newItem.setIcon(QIcon('images/ic_metaverse.png'))
        newItem.setForeground(Qt.GlobalColor.red)
        newItem.setBackground(Qt.GlobalColor.yellow)
        newItem.setCheckState(Qt.CheckState.Checked)
        #add new QListWidgetItem
        self.list_widget.addItem(newItem)

        #add a text for a new QlistWidgetItem
        self.list_widget.addItem("Smart Contract")
        #get item at row 1 and set icon for this Item
        self.list_widget.item(1).setIcon(QIcon('images/ic_smartcontract.png'))
        #add an array for QListWidget
        self.list_widget.addItems(["Learn Python", "Machine Learning", "Deep Learning"])

        layout.addWidget(self.list_widget, 0, 0, 5, 1)
        # create buttons and do signals and slots for QPushButton action:
        add_button = QPushButton('Add New Item')
        add_button.clicked.connect(self.addItem)

        update_button = QPushButton('Update Item')
        update_button.clicked.connect(self.updateItem)

        insert_button = QPushButton('Insert New Item')
        insert_button.clicked.connect(self.insertItem)

        remove_button = QPushButton('Remove Selected Item')
        remove_button.clicked.connect(self.removeItem)

        clear_button = QPushButton('Clear All')
        clear_button.clicked.connect(self.clearAll)

        layout.addWidget(add_button, 0, 1)
        layout.addWidget(update_button, 1, 1)
        layout.addWidget(insert_button, 2, 1)
        layout.addWidget(remove_button, 3, 1)
        layout.addWidget(clear_button, 4, 1)
        #mouse and key signal for QListWidget
        self.list_widget.itemClicked.connect(self.processItemClicked)
        self.list_widget.itemDoubleClicked.connect(self.processItemDoubleClicked)
        #Signal listener user selected the item
        self.list_widget.itemSelectionChanged.connect(self.processItemSelectionChanged)
        # show the window
        self.show()
    #slot to show text of selected item into the title of Window
    def processItemSelectionChanged(self):
        current_row = self.list_widget.currentRow()
        item = self.list_widget.item(current_row)
        self.setWindowTitle(item.text())
    #slot show the update ui:
    def processItemDoubleClicked(self):
        self.updateItem()
    #slot for clicking the item
    def processItemClicked(self):
        current_row = self.list_widget.currentRow()
        data = self.list_widget.item(current_row)
        print("itemClicked=",data.text())
    #slot to show Adding new Item for QListWidget, using QInputDialog
    def addItem(self):
        text, ok = QInputDialog.getText(self, 'Add a New Data', 'New Data:')
        if ok and text:
            self.list_widget.addItem(text)

    # slot to show Updating selected Item for QListWidget, using QInputDialog
    def updateItem(self):
        current_row = self.list_widget.currentRow()
        if current_row >= 0:
            item = self.list_widget.item(current_row)
            text, ok = QInputDialog.getText(self, 'Update Data', 'New Data:',text=item.text())
            if ok and text:
                item.setText(text)

    # slot to show Inserting a new Item for QListWidget, using QInputDialog
    def insertItem(self):
        text, ok = QInputDialog.getText(self, 'Insert a New Data', 'New Data:')
        if ok and text:
            current_row = self.list_widget.currentRow()
            self.list_widget.insertItem(current_row+1, text)
    #slot to remove selected item
    def removeItem(self):
        current_row = self.list_widget.currentRow()
        if current_row >= 0:
            item=self.list_widget.item(current_row)
            msg=QMessageBox()
            msg.setText(f"Are you sure you want to remove {item.text()}?")
            msg.setWindowTitle("Removing Confirmation")
            msg.setIcon(QMessageBox.Icon.Question)
            buttons=QMessageBox.StandardButton.Yes|QMessageBox.StandardButton.No
            msg.setStandardButtons(buttons)
            result= msg.exec()
            if result==QMessageBox.StandardButton.Yes:
                current_item = self.list_widget.takeItem(current_row)
                del current_item
    #slot to remove all item from QListWidget
    def clearAll(self):
        answer = QMessageBox.question(
            self,
            'Confirmation',
            'Do you want to clear all Data?',
            QMessageBox.StandardButton.Yes |
            QMessageBox.StandardButton.No
        )
        if answer == QMessageBox.StandardButton.Yes:
            self.list_widget.clear()

if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = MainWindow()
    sys.exit(app.exec())

from PyQt6.QtWidgets import QComboBox

self.cboCategory = QComboBox(self)

self.cboCategory.addItem('Laptop')
self.cboCategory.addItem('Phone & Tablet')
self.cboCategory.addItem('Smart Watch')
self.cboCategory.insertItem(1,"Head Phone")

self.cboCategory.insertItems(2,["Mouse","Mouse Pad"])
self.cboCategory.addItems(["Game & Stream","Monitor"])

self.cboCategory.activated.connect(self.processSelectedComboBox)

def processSelectedComboBox(self):
    index=self.cboCategory.currentIndex()
    text=self.cboCategory.currentText()
    self.result_label.setText(
        f'You selected index= {index}, text={text}')

import sys
from PyQt6.QtWidgets import QApplication, QWidget, QLabel, QVBoxLayout, QComboBox

class MainWindow(QWidget):
    def __init__(self):
        super().__init__()

        self.setWindowTitle('Tran Duy Thanh')
        self.setMinimumWidth(300)

        # create a grid layout
        layout = QVBoxLayout()
        self.setLayout(layout)

        cb_label = QLabel('Please select a Category:', self)

        # create a combobox
        self.cboCategory = QComboBox(self)
        self.cboCategory.addItem('Laptop')
        self.cboCategory.addItem('Phone & Tablet')
        self.cboCategory.addItem('Smart Watch')
        self.cboCategory.insertItem(1,"Head Phone")

        self.cboCategory.insertItems(2,["Mouse","Mouse Pad"])
        self.cboCategory.addItems(["Game & Stream","Monitor"])

        self.cboCategory.activated.connect(self.processSelectedComboBox)

        self.result_label = QLabel('', self)

        layout.addWidget(cb_label)
        layout.addWidget(self.cboCategory)
        layout.addWidget(self.result_label)

        self.show()

    def processSelectedComboBox(self):
        index=self.cboCategory.currentIndex()
        text=self.cboCategory.currentText()
        self.result_label.setText(
            f'You selected index= {index}, text={text}')
if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = MainWindow()
    sys.exit(app.exec())

class Category:
    def __init__(self,id,name):
        self.id=id
        self.name=name
    def __str__(self):
        return str(self.id)+"-"+self.name

self.cboCategory = QComboBox(self)

laptop_icon=QIcon("images/laptop.png")
laptop_model=Category(100,"Laptop")
self.cboCategory.addItem(laptop_icon,laptop_model.name,laptop_model)

phone_icon = QIcon("images/phone.png")
phone_model = Category(200, "Phone")
self.cboCategory.addItem(phone_icon, phone_model.name, phone_model)

smart_icon = QIcon("images/smartwatch.png")
smart_model = Category(300, "Smart Watch")
self.cboCategory.addItem(smart_icon, smart_model.name, smart_model)

self.cboCategory.activated.connect(self.processSelectedComboBox)

def processSelectedComboBox(self):
    data=self.cboCategory.currentData()
    self.result_label.setText(
        f'You selected index= {data}')

import sys

from PyQt6.QtGui import QIcon
from PyQt6.QtWidgets import QApplication, QWidget, QLabel, QVBoxLayout, QComboBox

from Category import Category


class MainWindow(QWidget):
    def __init__(self):
        super().__init__()

        self.setWindowTitle('Tran Duy Thanh')
        self.setMinimumWidth(300)

        # create a grid layout
        layout = QVBoxLayout()
        self.setLayout(layout)

        cb_label = QLabel('Please select a Category:', self)

        # create a combobox
        self.cboCategory = QComboBox(self)

        laptop_icon=QIcon("images/laptop.png")
        laptop_model=Category(100,"Laptop")
        self.cboCategory.addItem(laptop_icon,laptop_model.name,laptop_model)

        phone_icon = QIcon("images/phone.png")
        phone_model = Category(200, "Phone")
        self.cboCategory.addItem(phone_icon, phone_model.name, phone_model)

        smart_icon = QIcon("images/smartwatch.png")
        smart_model = Category(300, "Smart Watch")
        self.cboCategory.addItem(smart_icon, smart_model.name, smart_model)


        self.cboCategory.activated.connect(self.processSelectedComboBox)

        self.result_label = QLabel('', self)

        layout.addWidget(cb_label)
        layout.addWidget(self.cboCategory)
        layout.addWidget(self.result_label)

        self.show()

def processSelectedComboBox(self):
    data=self.cboCategory.currentData()
    self.result_label.setText(
        f'You selected index= {data}')
if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = MainWindow()
    sys.exit(app.exec())

class Employee:
    def __init__(self,fullName,gender,city):
        self.fullName=fullName
        self.gender=gender
        self.city=city

from MainWindow import Ui_MainWindow

class MainWindowEx(Ui_MainWindow):
    def __init__(self):
        super().__init__()
    def setupUi(self, MainWindow):
        super().setupUi(MainWindow)
        self.MainWindow=MainWindow
    def show(self):
        self.MainWindow.show()

from PyQt6.QtWidgets import QApplication, QMainWindow

from MainWindowEx import MainWindowEx

app=QApplication([])
myWindow=MainWindowEx()
myWindow.setupUi(QMainWindow())
myWindow.show()
app.exec()

import json

class Employee:
    def __init__(self,fullName,gender,city):
        self.fullName=fullName
        self.gender=gender
        self.city=city
    def __str__(self):
        return json.dumps(self.__dict__)

from Employee import Employee
from MainWindow import Ui_MainWindow

class MainWindowEx(Ui_MainWindow):
    def __init__(self):
        super().__init__()
    def setupUi(self, MainWindow):
        super().setupUi(MainWindow)
        self.MainWindow=MainWindow
        self.pushButtonClose.clicked.connect(self.processClose)
        self.pushButtonConfirm.clicked.connect(self.processConfirmation)
    def processConfirmation(self):
        name=self.lineEditfullName.text()
        gender="Man"
        if self.chkGender.isChecked():
            gender="Woman"
        city=self.cboCity.currentText()
        emp=Employee(name,gender,city)
        self.plainTextEditOutput.setPlainText(str(emp))
    def processClose(self):
        self.MainWindow.close()
    def show(self):
        self.MainWindow.show()

from PyQt6.QtWidgets import QApplication
from PyQt6.QtWidgets import QWidget
from PyQt6.QtWidgets import QRadioButton
from PyQt6.QtWidgets import QButtonGroup

from PyQt6.QtWidgets import QApplication
from PyQt6.QtWidgets import QWidget
from PyQt6.QtWidgets import QRadioButton
from PyQt6.QtWidgets import QButtonGroup

app = QApplication([])

w = QWidget()
w.setWindowTitle("Trần Duy Thanh - QRadioButton")
w.resize(300, 150)

radRed = QRadioButton("Red",w)
radRed.move(20, 20)

radGreen = QRadioButton("Green",w)
radGreen.move(20, 40)

radBlue = QRadioButton("Blue",w)
radBlue.move(20, 60)

color_group = QButtonGroup(w)
color_group.addButton(radRed)
color_group.addButton(radGreen)
color_group.addButton(radBlue)

w.show()

app.exec()

def changeBackgroundToRed(value):
    if value==True:
        w.setStyleSheet("background-color:red;");
def changeBackgroundToGreen(value):
    if value == True:
        w.setStyleSheet("background-color:green;")
def changeBackgroundToBlue(value):
    if value == True:
        w.setStyleSheet("background-color:blue;")
radRed.clicked.connect(changeBackgroundToRed)
radGreen.clicked.connect(changeBackgroundToGreen)
radBlue.clicked.connect(changeBackgroundToBlue)

from PyQt6.QtWidgets import QApplication
from PyQt6.QtWidgets import QWidget
from PyQt6.QtWidgets import QRadioButton
from PyQt6.QtWidgets import QButtonGroup

app = QApplication([])

w = QWidget()
w.setWindowTitle("Trần Duy Thanh - QRadioButton")
w.resize(300, 150)

radRed = QRadioButton("Red",w)
radRed.move(20, 20)

radGreen = QRadioButton("Green",w)
radGreen.move(20, 40)

radBlue = QRadioButton("Blue",w)
radBlue.move(20, 60)

color_group = QButtonGroup(w)
color_group.addButton(radRed)
color_group.addButton(radGreen)
color_group.addButton(radBlue)

def changeBackgroundToRed(value):
    if value==True:
        w.setStyleSheet("background-color:red;");
def changeBackgroundToGreen(value):
    if value == True:
        w.setStyleSheet("background-color:green;")
def changeBackgroundToBlue(value):
    if value == True:
        w.setStyleSheet("background-color:blue;")
radRed.clicked.connect(changeBackgroundToRed)
radGreen.clicked.connect(changeBackgroundToGreen)
radBlue.clicked.connect(changeBackgroundToBlue)

w.show()

app.exec()

# Form implementation generated from reading ui file 'MainWindow.ui'
#
# Created by: PyQt6 UI code generator 6.5.2
#
# WARNING: Any manual changes made to this file will be lost when pyuic6 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt6 import QtCore, QtGui, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(449, 378)
        font = QtGui.QFont()
        font.setPointSize(12)
        MainWindow.setFont(font)
        self.centralwidget = QtWidgets.QWidget(parent=MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.groupBox = QtWidgets.QGroupBox(parent=self.centralwidget)
        self.groupBox.setGeometry(QtCore.QRect(20, 10, 411, 121))
        self.groupBox.setStyleSheet("border-color: rgb(0, 0, 255);\n"
"background-color: rgb(251, 255, 171);\n"
"")
        self.groupBox.setObjectName("groupBox")
        self.radWoman = QtWidgets.QRadioButton(parent=self.groupBox)
        self.radWoman.setGeometry(QtCore.QRect(110, 90, 91, 18))
        self.radWoman.setChecked(True)
        self.radWoman.setObjectName("radWoman")
        self.radMan = QtWidgets.QRadioButton(parent=self.groupBox)
        self.radMan.setGeometry(QtCore.QRect(220, 90, 83, 18))
        self.radMan.setObjectName("radMan")
        self.lineEditFullName = QtWidgets.QLineEdit(parent=self.groupBox)
        self.lineEditFullName.setGeometry(QtCore.QRect(110, 30, 281, 20))
        self.lineEditFullName.setObjectName("lineEditFullName")
        self.label = QtWidgets.QLabel(parent=self.groupBox)
        self.label.setGeometry(QtCore.QRect(20, 30, 81, 21))
        self.label.setObjectName("label")
        self.label_2 = QtWidgets.QLabel(parent=self.groupBox)
        self.label_2.setGeometry(QtCore.QRect(20, 90, 71, 21))
        self.label_2.setObjectName("label_2")
        self.lineEditEmail = QtWidgets.QLineEdit(parent=self.groupBox)
        self.lineEditEmail.setGeometry(QtCore.QRect(110, 60, 281, 20))
        self.lineEditEmail.setObjectName("lineEditEmail")
        self.label_3 = QtWidgets.QLabel(parent=self.groupBox)
        self.label_3.setGeometry(QtCore.QRect(20, 60, 81, 21))
        self.label_3.setObjectName("label_3")
        self.groupBox_2 = QtWidgets.QGroupBox(parent=self.centralwidget)
        self.groupBox_2.setGeometry(QtCore.QRect(20, 150, 411, 131))
        self.groupBox_2.setStyleSheet("background-color: rgb(232, 255, 225);")
        self.groupBox_2.setAlignment(QtCore.Qt.AlignmentFlag.AlignRight|QtCore.Qt.AlignmentFlag.AlignTrailing|QtCore.Qt.AlignmentFlag.AlignVCenter)
        self.groupBox_2.setObjectName("groupBox_2")
        self.radBachelor = QtWidgets.QRadioButton(parent=self.groupBox_2)
        self.radBachelor.setGeometry(QtCore.QRect(110, 60, 91, 18))
        self.radBachelor.setObjectName("radBachelor")
        self.radMaster = QtWidgets.QRadioButton(parent=self.groupBox_2)
        self.radMaster.setGeometry(QtCore.QRect(110, 80, 83, 18))
        self.radMaster.setObjectName("radMaster")
        self.lineEditAddress = QtWidgets.QLineEdit(parent=self.groupBox_2)
        self.lineEditAddress.setGeometry(QtCore.QRect(110, 30, 281, 20))
        self.lineEditAddress.setObjectName("lineEditAddress")
        self.label_4 = QtWidgets.QLabel(parent=self.groupBox_2)
        self.label_4.setGeometry(QtCore.QRect(20, 30, 81, 21))
        self.label_4.setObjectName("label_4")
        self.label_5 = QtWidgets.QLabel(parent=self.groupBox_2)
        self.label_5.setGeometry(QtCore.QRect(20, 60, 71, 21))
        self.label_5.setObjectName("label_5")
        self.radDoctoral = QtWidgets.QRadioButton(parent=self.groupBox_2)
        self.radDoctoral.setGeometry(QtCore.QRect(110, 100, 83, 18))
        self.radDoctoral.setChecked(True)
        self.radDoctoral.setObjectName("radDoctoral")
        self.pushButtonSendData = QtWidgets.QPushButton(parent=self.centralwidget)
        self.pushButtonSendData.setGeometry(QtCore.QRect(150, 290, 121, 31))
        self.pushButtonSendData.setObjectName("pushButtonSendData")
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(parent=MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 449, 22))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(parent=MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "Trần Duy Thanh"))
        self.groupBox.setTitle(_translate("MainWindow", "Personal Information:"))
        self.radWoman.setText(_translate("MainWindow", "Woman"))
        self.radMan.setText(_translate("MainWindow", "Man"))
        self.lineEditFullName.setText(_translate("MainWindow", "Trần Phạm Thanh Trà"))
        self.label.setText(_translate("MainWindow", "Full Name:"))
        self.label_2.setText(_translate("MainWindow", "Gender:"))
        self.lineEditEmail.setText(_translate("MainWindow", "trachanh@gmail.com"))
        self.label_3.setText(_translate("MainWindow", "Email:"))
        self.groupBox_2.setTitle(_translate("MainWindow", "Other Information:"))
        self.radBachelor.setText(_translate("MainWindow", "Bachelor"))
        self.radMaster.setText(_translate("MainWindow", "Master"))
        self.lineEditAddress.setText(_translate("MainWindow", "The Earth"))
        self.label_4.setText(_translate("MainWindow", "Address:"))
        self.label_5.setText(_translate("MainWindow", "Education:"))
        self.radDoctoral.setText(_translate("MainWindow", "Doctoral"))
        self.pushButtonSendData.setText(_translate("MainWindow", "Send Data"))

from MainWindow import Ui_MainWindow

class MainWindowEX(Ui_MainWindow):
    def __init__(self):
        pass
    def setupUi(self, MainWindow):
        super().setupUi(MainWindow)
        self.MainWindow=MainWindow
    def show(self):
        self.MainWindow.show()

from PyQt6.QtWidgets import QApplication, QMainWindow

from MainWindowEX import MainWindowEX

app=QApplication([])
myWindow=MainWindowEX()
myWindow.setupUi(QMainWindow())
myWindow.show()
app.exec()

import json

from PyQt6.QtWidgets import QMessageBox

from MainWindow import Ui_MainWindow

class MainWindowEX(Ui_MainWindow):
    def __init__(self):
        pass
    def setupUi(self, MainWindow):
        super().setupUi(MainWindow)
        self.MainWindow=MainWindow
        self.pushButtonSendData.clicked.connect(self.getInformation)
    def getInformation(self):
        fullName=self.lineEditFullName.text()
        email=self.lineEditEmail.text()
        gender="Woman"
        if not self.radWoman.isChecked():
            gender=self.radMan.text()
        address=self.lineEditAddress.text()
        degree="Bachelor"
        if self.radMaster.isChecked():
            degree=self.radMaster.text()
        elif self.radDoctoral.isChecked():
            degree=self.radDoctoral.text()
        information={"FullName":fullName,
                     "Email":email,
                     "Gender":gender,
                     "Address":address,
                     "Degree":degree
                     }
        self.msgBox=QMessageBox()
        self.msgBox.setWindowTitle("Information")
        self.msgBox.setText(json.dumps(information, ensure_ascii=False))
        self.msgBox.show()
    def show(self):
        self.MainWindow.show()

from PyQt6.QtWidgets import QCheckBox

checkbox = QCheckBox(text)

checkbox.stateChanged.connect(self.on_checkbox_changed)

def on_checkbox_changed(self, value):
    state = Qt.CheckState(value)
    if state == Qt.CheckState.Checked:
        print('You Checked')
    elif state == Qt.CheckState.Unchecked:
        print('You Unchecked')

# Form implementation generated from reading ui file 'MainWindow.ui'
#
# Created by: PyQt6 UI code generator 6.4.2
#
# WARNING: Any manual changes made to this file will be lost when pyuic6 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt6 import QtCore, QtGui, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(441, 334)
        self.centralwidget = QtWidgets.QWidget(parent=MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.label = QtWidgets.QLabel(parent=self.centralwidget)
        self.label.setGeometry(QtCore.QRect(120, 10, 301, 41))
        font = QtGui.QFont()
        font.setPointSize(15)
        font.setBold(True)
        font.setItalic(True)
        font.setWeight(75)
        self.label.setFont(font)
        self.label.setStyleSheet("color: rgb(0, 0, 255);")
        self.label.setObjectName("label")
        self.label_2 = QtWidgets.QLabel(parent=self.centralwidget)
        self.label_2.setGeometry(QtCore.QRect(20, 60, 101, 21))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.label_2.setFont(font)
        self.label_2.setObjectName("label_2")
        self.lineEditFullName = QtWidgets.QLineEdit(parent=self.centralwidget)
        self.lineEditFullName.setGeometry(QtCore.QRect(130, 60, 251, 20))
        self.lineEditFullName.setObjectName("lineEditFullName")
        self.lineEditEmail = QtWidgets.QLineEdit(parent=self.centralwidget)
        self.lineEditEmail.setGeometry(QtCore.QRect(130, 90, 251, 20))
        self.lineEditEmail.setObjectName("lineEditEmail")
        self.label_3 = QtWidgets.QLabel(parent=self.centralwidget)
        self.label_3.setGeometry(QtCore.QRect(20, 90, 81, 21))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.label_3.setFont(font)
        self.label_3.setObjectName("label_3")
        self.label_4 = QtWidgets.QLabel(parent=self.centralwidget)
        self.label_4.setGeometry(QtCore.QRect(130, 120, 251, 21))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.label_4.setFont(font)
        self.label_4.setStyleSheet("background-color: rgb(255, 255, 0);")
        self.label_4.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
        self.label_4.setObjectName("label_4")
        self.chkMachineLearning = QtWidgets.QCheckBox(parent=self.centralwidget)
        self.chkMachineLearning.setGeometry(QtCore.QRect(130, 150, 241, 18))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.chkMachineLearning.setFont(font)
        self.chkMachineLearning.setObjectName("chkMachineLearning")
        self.chkDeepLearning = QtWidgets.QCheckBox(parent=self.centralwidget)
        self.chkDeepLearning.setGeometry(QtCore.QRect(130, 180, 241, 18))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.chkDeepLearning.setFont(font)
        self.chkDeepLearning.setObjectName("chkDeepLearning")
        self.chkSmartContract = QtWidgets.QCheckBox(parent=self.centralwidget)
        self.chkSmartContract.setGeometry(QtCore.QRect(130, 210, 241, 18))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.chkSmartContract.setFont(font)
        self.chkSmartContract.setObjectName("chkSmartContract")
        self.pushButtonSubmit = QtWidgets.QPushButton(parent=self.centralwidget)
        self.pushButtonSubmit.setGeometry(QtCore.QRect(170, 240, 121, 41))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.pushButtonSubmit.setFont(font)
        icon = QtGui.QIcon()
        icon.addPixmap(QtGui.QPixmap("images/ic_send.png"), QtGui.QIcon.Mode.Normal, QtGui.QIcon.State.Off)
        self.pushButtonSubmit.setIcon(icon)
        self.pushButtonSubmit.setIconSize(QtCore.QSize(32, 32))
        self.pushButtonSubmit.setObjectName("pushButtonSubmit")
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(parent=MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 441, 26))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(parent=MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "Trần Duy Thanh"))
        self.label.setText(_translate("MainWindow", "Courses Registration"))
        self.label_2.setText(_translate("MainWindow", "Full Name:"))
        self.label_3.setText(_translate("MainWindow", "Email:"))
        self.label_4.setText(_translate("MainWindow", "Courses Selection:"))
        self.chkMachineLearning.setText(_translate("MainWindow", "Machine Learning"))
        self.chkDeepLearning.setText(_translate("MainWindow", "Deep Learning"))
        self.chkSmartContract.setText(_translate("MainWindow", "Smart Contract"))
        self.pushButtonSubmit.setText(_translate("MainWindow", "Submit"))

from PyQt6.QtCore import Qt
from PyQt6.QtWidgets import QMessageBox

from MainWindow import Ui_MainWindow


class MainWindowEx(Ui_MainWindow):
    def __init__(self):
        pass
    def setupUi(self, MainWindow):
        super().setupUi(MainWindow)
        self.MainWindow=MainWindow
        self.pushButtonSubmit.clicked.connect(self.processSubmit)
    def show(self):
        self.MainWindow.show()
    def processSubmit(self):
        str=[]
        if self.chkMachineLearning.isChecked()==True:
            str.append(self.chkMachineLearning.text())
        if self.chkDeepLearning.isChecked()==True:
            str.append(self.chkDeepLearning.text())
        if self.chkSmartContract.isChecked()==True:
            str.append(self.chkSmartContract.text())
        separator=','
        infor="Full Name = "+self.lineEditFullName.text()+"\n"
        infor+="Email = "+self.lineEditEmail.text()+"\n"
        infor+="Selected courses:"+"\n"
        infor+=separator.join(str)
        self.msg=QMessageBox()
        self.msg.setWindowTitle("Selected Courses")
        self.msg.setText(infor)

        self.msg.show()

from PyQt6.QtWidgets import QApplication, QMainWindow

from MainWindowEx import MainWindowEx

app=QApplication([])
myWindow=MainWindowEx()
myWindow.setupUi(QMainWindow())
myWindow.show()
app.exec()

# Form implementation generated from reading ui file 'MainWindow.ui'
#
# Created by: PyQt6 UI code generator 6.4.2
#
# WARNING: Any manual changes made to this file will be lost when pyuic6 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt6 import QtCore, QtGui, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(442, 521)
        self.centralwidget = QtWidgets.QWidget(parent=MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.chkShowHide = QtWidgets.QCheckBox(parent=self.centralwidget)
        self.chkShowHide.setGeometry(QtCore.QRect(60, 30, 291, 21))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.chkShowHide.setFont(font)
        self.chkShowHide.setObjectName("chkShowHide")
        self.lblImage = QtWidgets.QLabel(parent=self.centralwidget)
        self.lblImage.setGeometry(QtCore.QRect(60, 60, 301, 371))
        self.lblImage.setText("")
        self.lblImage.setPixmap(QtGui.QPixmap("images/daughter.jpg"))
        self.lblImage.setScaledContents(True)
        self.lblImage.setObjectName("lblImage")
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(parent=MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 442, 26))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(parent=MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "Trần Duy Thanh"))
        self.chkShowHide.setText(_translate("MainWindow", "Show/Hide Image"))

from PyQt6.QtCore import Qt

from MainWindow import Ui_MainWindow


class MainWindowEx(Ui_MainWindow):
    def __init__(self):
        pass
    def setupUi(self, MainWindow):
        super().setupUi(MainWindow)
        self.MainWindow=MainWindow
        self.chkShowHide.setChecked(True)
        self.chkShowHide.stateChanged.connect(self.processChecked)
    def show(self):
        self.MainWindow.show()
    def processChecked(self,value):
        state=Qt.CheckState(value)
        if state==Qt.CheckState.Checked:
            self.lblImage.show()
        elif state==Qt.CheckState.Unchecked:
            self.lblImage.hide()

from PyQt6.QtWidgets import QApplication, QMainWindow

from MainWindowEx import MainWindowEx

app=QApplication([])
myWindow=MainWindowEx()
myWindow.setupUi(QMainWindow())
myWindow.show()
app.exec()

from PyQt6.QtWidgets import QPushButton

button = QPushButton('Click Me')

from PyQt6.QtGui import QIcon

button.setIcon(QIcon('myicon.png'))

button.setFixedSize(QSize(100, 30))

button.clicked.connect(self.on_clicked)

def on_clicked(self):
    print("You clicked me!")

# Form implementation generated from reading ui file 'MainWindow.ui'
#
# Created by: PyQt6 UI code generator 6.4.2
#
# WARNING: Any manual changes made to this file will be lost when pyuic6 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt6 import QtCore, QtGui, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(507, 405)
        self.centralwidget = QtWidgets.QWidget(parent=MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.label = QtWidgets.QLabel(parent=self.centralwidget)
        self.label.setGeometry(QtCore.QRect(20, 10, 471, 51))
        font = QtGui.QFont()
        font.setPointSize(15)
        self.label.setFont(font)
        self.label.setStyleSheet("background-color: rgb(255, 255, 0);\n"
"color: rgb(0, 0, 127);")
        self.label.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
        self.label.setObjectName("label")
        self.label_2 = QtWidgets.QLabel(parent=self.centralwidget)
        self.label_2.setGeometry(QtCore.QRect(30, 70, 81, 41))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.label_2.setFont(font)
        self.label_2.setObjectName("label_2")
        self.lineEditWeight = QtWidgets.QLineEdit(parent=self.centralwidget)
        self.lineEditWeight.setGeometry(QtCore.QRect(140, 80, 191, 31))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.lineEditWeight.setFont(font)
        self.lineEditWeight.setObjectName("lineEditWeight")
        self.label_3 = QtWidgets.QLabel(parent=self.centralwidget)
        self.label_3.setGeometry(QtCore.QRect(350, 70, 81, 41))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.label_3.setFont(font)
        self.label_3.setObjectName("label_3")
        self.label_4 = QtWidgets.QLabel(parent=self.centralwidget)
        self.label_4.setGeometry(QtCore.QRect(350, 130, 81, 41))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.label_4.setFont(font)
        self.label_4.setObjectName("label_4")
        self.lineEditHeight = QtWidgets.QLineEdit(parent=self.centralwidget)
        self.lineEditHeight.setGeometry(QtCore.QRect(140, 140, 191, 31))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.lineEditHeight.setFont(font)
        self.lineEditHeight.setObjectName("lineEditHeight")
        self.label_5 = QtWidgets.QLabel(parent=self.centralwidget)
        self.label_5.setGeometry(QtCore.QRect(30, 130, 81, 41))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.label_5.setFont(font)
        self.label_5.setObjectName("label_5")
        self.pushButtonCalculate = QtWidgets.QPushButton(parent=self.centralwidget)
        self.pushButtonCalculate.setGeometry(QtCore.QRect(110, 290, 141, 51))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.pushButtonCalculate.setFont(font)
        icon = QtGui.QIcon()
        icon.addPixmap(QtGui.QPixmap("images/ic_calculate.png"), QtGui.QIcon.Mode.Normal, QtGui.QIcon.State.Off)
        self.pushButtonCalculate.setIcon(icon)
        self.pushButtonCalculate.setIconSize(QtCore.QSize(32, 32))
        self.pushButtonCalculate.setObjectName("pushButtonCalculate")
        self.pushButtonClose = QtWidgets.QPushButton(parent=self.centralwidget)
        self.pushButtonClose.setGeometry(QtCore.QRect(290, 290, 141, 51))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.pushButtonClose.setFont(font)
        icon1 = QtGui.QIcon()
        icon1.addPixmap(QtGui.QPixmap("images/ic_close.png"), QtGui.QIcon.Mode.Normal, QtGui.QIcon.State.Off)
        self.pushButtonClose.setIcon(icon1)
        self.pushButtonClose.setIconSize(QtCore.QSize(32, 32))
        self.pushButtonClose.setObjectName("pushButtonClose")
        self.label_6 = QtWidgets.QLabel(parent=self.centralwidget)
        self.label_6.setGeometry(QtCore.QRect(30, 190, 81, 41))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.label_6.setFont(font)
        self.label_6.setObjectName("label_6")
        self.label_7 = QtWidgets.QLabel(parent=self.centralwidget)
        self.label_7.setGeometry(QtCore.QRect(30, 239, 91, 41))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.label_7.setFont(font)
        self.label_7.setObjectName("label_7")
        self.labelComment = QtWidgets.QLabel(parent=self.centralwidget)
        self.labelComment.setGeometry(QtCore.QRect(140, 240, 281, 41))
        palette = QtGui.QPalette()
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Active, QtGui.QPalette.ColorRole.WindowText, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Active, QtGui.QPalette.ColorRole.Button, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 127, 127))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Active, QtGui.QPalette.ColorRole.Light, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 63, 63))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Active, QtGui.QPalette.ColorRole.Midlight, brush)
        brush = QtGui.QBrush(QtGui.QColor(127, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Active, QtGui.QPalette.ColorRole.Dark, brush)
        brush = QtGui.QBrush(QtGui.QColor(170, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Active, QtGui.QPalette.ColorRole.Mid, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Active, QtGui.QPalette.ColorRole.Text, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Active, QtGui.QPalette.ColorRole.BrightText, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Active, QtGui.QPalette.ColorRole.ButtonText, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Active, QtGui.QPalette.ColorRole.Base, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Active, QtGui.QPalette.ColorRole.Window, brush)
        brush = QtGui.QBrush(QtGui.QColor(0, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Active, QtGui.QPalette.ColorRole.Shadow, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 127, 127))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Active, QtGui.QPalette.ColorRole.AlternateBase, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 255, 220))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Active, QtGui.QPalette.ColorRole.ToolTipBase, brush)
        brush = QtGui.QBrush(QtGui.QColor(0, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Active, QtGui.QPalette.ColorRole.ToolTipText, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Inactive, QtGui.QPalette.ColorRole.WindowText, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Inactive, QtGui.QPalette.ColorRole.Button, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 127, 127))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Inactive, QtGui.QPalette.ColorRole.Light, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 63, 63))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Inactive, QtGui.QPalette.ColorRole.Midlight, brush)
        brush = QtGui.QBrush(QtGui.QColor(127, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Inactive, QtGui.QPalette.ColorRole.Dark, brush)
        brush = QtGui.QBrush(QtGui.QColor(170, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Inactive, QtGui.QPalette.ColorRole.Mid, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Inactive, QtGui.QPalette.ColorRole.Text, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Inactive, QtGui.QPalette.ColorRole.BrightText, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Inactive, QtGui.QPalette.ColorRole.ButtonText, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Inactive, QtGui.QPalette.ColorRole.Base, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Inactive, QtGui.QPalette.ColorRole.Window, brush)
        brush = QtGui.QBrush(QtGui.QColor(0, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Inactive, QtGui.QPalette.ColorRole.Shadow, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 127, 127))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Inactive, QtGui.QPalette.ColorRole.AlternateBase, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 255, 220))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Inactive, QtGui.QPalette.ColorRole.ToolTipBase, brush)
        brush = QtGui.QBrush(QtGui.QColor(0, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Inactive, QtGui.QPalette.ColorRole.ToolTipText, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Disabled, QtGui.QPalette.ColorRole.WindowText, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Disabled, QtGui.QPalette.ColorRole.Button, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 127, 127))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Disabled, QtGui.QPalette.ColorRole.Light, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 63, 63))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Disabled, QtGui.QPalette.ColorRole.Midlight, brush)
        brush = QtGui.QBrush(QtGui.QColor(127, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Disabled, QtGui.QPalette.ColorRole.Dark, brush)
        brush = QtGui.QBrush(QtGui.QColor(170, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Disabled, QtGui.QPalette.ColorRole.Mid, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Disabled, QtGui.QPalette.ColorRole.Text, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Disabled, QtGui.QPalette.ColorRole.BrightText, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Disabled, QtGui.QPalette.ColorRole.ButtonText, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Disabled, QtGui.QPalette.ColorRole.Base, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Disabled, QtGui.QPalette.ColorRole.Window, brush)
        brush = QtGui.QBrush(QtGui.QColor(0, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Disabled, QtGui.QPalette.ColorRole.Shadow, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Disabled, QtGui.QPalette.ColorRole.AlternateBase, brush)
        brush = QtGui.QBrush(QtGui.QColor(255, 255, 220))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Disabled, QtGui.QPalette.ColorRole.ToolTipBase, brush)
        brush = QtGui.QBrush(QtGui.QColor(0, 0, 0))
        brush.setStyle(QtCore.Qt.BrushStyle.SolidPattern)
        palette.setBrush(QtGui.QPalette.ColorGroup.Disabled, QtGui.QPalette.ColorRole.ToolTipText, brush)
        self.labelComment.setPalette(palette)
        font = QtGui.QFont()
        font.setPointSize(12)
        self.labelComment.setFont(font)
        self.labelComment.setStyleSheet("color: rgb(255, 0, 0);")
        self.labelComment.setObjectName("labelComment")
        self.labelBMI = QtWidgets.QLabel(parent=self.centralwidget)
        self.labelBMI.setGeometry(QtCore.QRect(140, 190, 191, 41))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.labelBMI.setFont(font)
        self.labelBMI.setStyleSheet("color: rgb(0, 0, 255);")
        self.labelBMI.setObjectName("labelBMI")
        self.label_10 = QtWidgets.QLabel(parent=self.centralwidget)
        self.label_10.setGeometry(QtCore.QRect(350, 190, 81, 41))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.label_10.setFont(font)
        self.label_10.setObjectName("label_10")
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(parent=MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 507, 26))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(parent=MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        self.pushButtonClose.clicked.connect(MainWindow.close) # type: ignore
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "Trần Duy Thanh"))
        self.label.setText(_translate("MainWindow", "BMI Application"))
        self.label_2.setText(_translate("MainWindow", "Weight:"))
        self.lineEditWeight.setText(_translate("MainWindow", "80"))
        self.label_3.setText(_translate("MainWindow", "(Kg)"))
        self.label_4.setText(_translate("MainWindow", "(CM)"))
        self.lineEditHeight.setText(_translate("MainWindow", "170"))
        self.label_5.setText(_translate("MainWindow", "Height:"))
        self.pushButtonCalculate.setText(_translate("MainWindow", "Calculate"))
        self.pushButtonClose.setText(_translate("MainWindow", "Close"))
        self.label_6.setText(_translate("MainWindow", "BMI:"))
        self.label_7.setText(_translate("MainWindow", "Comment:"))
        self.labelComment.setText(_translate("MainWindow", "Overweight"))
        self.labelBMI.setText(_translate("MainWindow", "27.7"))
        self.label_10.setText(_translate("MainWindow", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:\'MS Shell Dlg 2\'; font-size:12pt; font-weight:400; font-style:normal;\">\n"
"<p style=\" margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">kg/m2</p></body></html>"))

from MainWindow import Ui_MainWindow


class MainWindowEx(Ui_MainWindow):
    def __init__(self):
        pass
    def setupUi(self, MainWindow):
        super().setupUi(MainWindow)
        self.MainWindow=MainWindow
        self.pushButtonCalculate.clicked.connect(self.calculateBMI)
    def calculateBMI(self):
        weight=float(self.lineEditWeight.text())
        height=float(self.lineEditHeight.text())
        height=height/100
        BMI=weight/(height*height)
        BMI=round(BMI,2)
        comment=""
        if BMI<16:
            comment="Severe Thinness"
        elif BMI<17:
            comment="Moderate Thinness"
        elif BMI<18.5:
            comment="Mild Thinness"
        elif BMI<25:
            comment="Normal"
        elif BMI<30:
            comment="Overweight"
        elif BMI<35:
            comment="Obese Class I"
        elif BMI<40:
            comment="Obese Class II"
        else:
            comment = "Obese Class III"
        self.labelBMI.setText(str(BMI))
        self.labelComment.setText(comment)
    def show(self):
        self.MainWindow.show()

from PyQt6.QtWidgets import QApplication, QMainWindow

from MainWindowEx import MainWindowEx

app=QApplication([])
myWindow= MainWindowEx()
myWindow.setupUi(QMainWindow())
myWindow.show()
app.exec()

button = QPushButton('Toggle Me')
button.setCheckable(True)
button.clicked.connect(self.on_toggle)

def on_toggle(self, checked):
    print(checked)

from PyQt6.QtWidgets import QLineEdit

nameLineEdit = QLineEdit('Tran Duy Thanh', self)

# Form implementation generated from reading ui file 'MainWindow.ui'
#
# Created by: PyQt6 UI code generator 6.4.2
#
# WARNING: Any manual changes made to this file will be lost when pyuic6 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt6 import QtCore, QtGui, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(415, 357)
        self.centralwidget = QtWidgets.QWidget(parent=MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.verticalLayout = QtWidgets.QVBoxLayout(self.centralwidget)
        self.verticalLayout.setObjectName("verticalLayout")
        self.label = QtWidgets.QLabel(parent=self.centralwidget)
        self.label.setMaximumSize(QtCore.QSize(16777215, 50))
        self.label.setObjectName("label")
        self.verticalLayout.addWidget(self.label)
        self.gridLayout = QtWidgets.QGridLayout()
        self.gridLayout.setObjectName("gridLayout")
        self.label_2 = QtWidgets.QLabel(parent=self.centralwidget)
        self.label_2.setObjectName("label_2")
        self.gridLayout.addWidget(self.label_2, 0, 0, 1, 1)
        self.fullNamelineEdit = QtWidgets.QLineEdit(parent=self.centralwidget)
        self.fullNamelineEdit.setClearButtonEnabled(True)
        self.fullNamelineEdit.setObjectName("fullNamelineEdit")
        self.gridLayout.addWidget(self.fullNamelineEdit, 0, 1, 1, 1)
        self.label_3 = QtWidgets.QLabel(parent=self.centralwidget)
        self.label_3.setObjectName("label_3")
        self.gridLayout.addWidget(self.label_3, 1, 0, 1, 1)
        self.userNamelineEdit = QtWidgets.QLineEdit(parent=self.centralwidget)
        self.userNamelineEdit.setObjectName("userNamelineEdit")
        self.gridLayout.addWidget(self.userNamelineEdit, 1, 1, 1, 1)
        self.label_4 = QtWidgets.QLabel(parent=self.centralwidget)
        self.label_4.setObjectName("label_4")
        self.gridLayout.addWidget(self.label_4, 2, 0, 1, 1)
        self.emaillineEdit = QtWidgets.QLineEdit(parent=self.centralwidget)
        self.emaillineEdit.setObjectName("emaillineEdit")
        self.gridLayout.addWidget(self.emaillineEdit, 2, 1, 1, 1)
        self.label_5 = QtWidgets.QLabel(parent=self.centralwidget)
        self.label_5.setObjectName("label_5")
        self.gridLayout.addWidget(self.label_5, 3, 0, 1, 1)
        self.citylineEdit = QtWidgets.QLineEdit(parent=self.centralwidget)
        self.citylineEdit.setObjectName("citylineEdit")
        self.gridLayout.addWidget(self.citylineEdit, 3, 1, 1, 1)
        self.label_6 = QtWidgets.QLabel(parent=self.centralwidget)
        self.label_6.setObjectName("label_6")
        self.gridLayout.addWidget(self.label_6, 4, 0, 1, 1)
        self.passwordlineEdit = QtWidgets.QLineEdit(parent=self.centralwidget)
        self.passwordlineEdit.setEchoMode(QtWidgets.QLineEdit.EchoMode.Password)
        self.passwordlineEdit.setObjectName("passwordlineEdit")
        self.gridLayout.addWidget(self.passwordlineEdit, 4, 1, 1, 1)
        self.label_7 = QtWidgets.QLabel(parent=self.centralwidget)
        self.label_7.setObjectName("label_7")
        self.gridLayout.addWidget(self.label_7, 5, 0, 1, 1)
        self.confirmPasswordlineEdit = QtWidgets.QLineEdit(parent=self.centralwidget)
        self.confirmPasswordlineEdit.setEchoMode(QtWidgets.QLineEdit.EchoMode.Password)
        self.confirmPasswordlineEdit.setObjectName("confirmPasswordlineEdit")
        self.gridLayout.addWidget(self.confirmPasswordlineEdit, 5, 1, 1, 1)
        self.verticalLayout.addLayout(self.gridLayout)
        self.horizontalLayout = QtWidgets.QHBoxLayout()
        self.horizontalLayout.setObjectName("horizontalLayout")
        self.registerpushButton = QtWidgets.QPushButton(parent=self.centralwidget)
        self.registerpushButton.setObjectName("registerpushButton")
        self.horizontalLayout.addWidget(self.registerpushButton, 0, QtCore.Qt.AlignmentFlag.AlignHCenter)
        self.closepushButton = QtWidgets.QPushButton(parent=self.centralwidget)
        self.closepushButton.setObjectName("closepushButton")
        self.horizontalLayout.addWidget(self.closepushButton, 0, QtCore.Qt.AlignmentFlag.AlignHCenter)
        self.verticalLayout.addLayout(self.horizontalLayout)
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(parent=MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 415, 26))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(parent=MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        self.closepushButton.clicked.connect(MainWindow.close) # type: ignore
        QtCore.QMetaObject.connectSlotsByName(MainWindow)
        MainWindow.setTabOrder(self.fullNamelineEdit, self.userNamelineEdit)
        MainWindow.setTabOrder(self.userNamelineEdit, self.emaillineEdit)
        MainWindow.setTabOrder(self.emaillineEdit, self.citylineEdit)
        MainWindow.setTabOrder(self.citylineEdit, self.passwordlineEdit)
        MainWindow.setTabOrder(self.passwordlineEdit, self.confirmPasswordlineEdit)
        MainWindow.setTabOrder(self.confirmPasswordlineEdit, self.registerpushButton)
        MainWindow.setTabOrder(self.registerpushButton, self.closepushButton)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "Trần Duy Thanh"))
        self.label.setText(_translate("MainWindow", "<html><head/><body><p align=\"center\"><span style=\" font-size:14pt; font-weight:600; color:#0000ff;\">Register Information</span></p></body></html>"))
        self.label_2.setText(_translate("MainWindow", "Full Name:"))
        self.fullNamelineEdit.setPlaceholderText(_translate("MainWindow", "Enter your full name here"))
        self.label_3.setText(_translate("MainWindow", "User Name:"))
        self.label_4.setText(_translate("MainWindow", "Email:"))
        self.label_5.setText(_translate("MainWindow", "City/Province:"))
        self.label_6.setText(_translate("MainWindow", "Password:"))
        self.label_7.setText(_translate("MainWindow", "Confirm Password:"))
        self.registerpushButton.setText(_translate("MainWindow", "Register"))
        self.closepushButton.setText(_translate("MainWindow", "Close"))

from MainWindow import Ui_MainWindow


class MainWindowEx(Ui_MainWindow):
    def __init__(self):
        pass
    def setupUi(self, MainWindow):
        super().setupUi(MainWindow)
        self.MainWindow=MainWindow
    def show(self):
        self.MainWindow.show()

from PyQt6.QtWidgets import QApplication, QMainWindow

from MainWindowEx import MainWindowEx

app=QApplication([])
myWindow=MainWindowEx()
myWindow.setupUi(QMainWindow())
myWindow.show()
app.exec()

from PyQt6.QtWidgets import QCompleter

cities=["Hà Nội","Huế", "Đà Nẵng", "Đà Lạt", "Hồ Chí Minh", "Cần Thơ"]

completer = QCompleter(cities)

line_edit = QLineEdit(self)
line_edit.setCompleter(completer)

from PyQt6.QtWidgets import QCompleter

from MainWindow import Ui_MainWindow


class MainWindowEx(Ui_MainWindow):
    def __init__(self):
        pass
    def setupUi(self, MainWindow):
        super().setupUi(MainWindow)
        self.MainWindow=MainWindow
        cities = ["Hà Nội", "Huế", "Đà Nẵng", "Đà Lạt", "Hồ Chí Minh", "Cần Thơ"]
        completer = QCompleter(cities)
        self.citylineEdit.setCompleter(completer)
    def show(self):
        self.MainWindow.show()