pyQt5 AttributeError: 'bool' 对象没有属性 'txtCustCode'

Question

使用 QT Designer 设计代码。然后使用pyuic5 -x productentryscreen.ui > productentryscreen3.py命令生成python代码。 我正在使用按钮和文本框。当按下按钮时，我想显示在 QlineEdit 框中输入的值。 但是当单击 btnCancel 时，我收到错误“AttributeError: 'bool' object has no attribute”。这是引发错误的地方（我想）textboxValue = self.txtCustCode.text。我什至尝试过textboxValue = self.txtCustCode.text() 以下是代码

   import sqlite3
   from PyQt5 import QtCore, QtGui, QtWidgets
   from PyQt5.QtCore import QObject
   from PyQt5.QtGui import QIcon
   from PyQt5.QtCore import pyqtSlot
   from PyQt5.QtWidgets import QMainWindow, QApplication, QWidget, QPushButton, QAction, QLineEdit, 
   QMessageBox

   # Generated Code
    class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
    #def setupUi(self):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(800, 600)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.label = QtWidgets.QLabel(self.centralwidget)
        self.label.setGeometry(QtCore.QRect(30, 130, 160, 16))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.label.setFont(font)
        self.label.setObjectName("label")
        self.label_2 = QtWidgets.QLabel(self.centralwidget)
        self.label_2.setGeometry(QtCore.QRect(30, 160, 130, 16))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.label_2.setFont(font)
        self.label_2.setObjectName("label_2")
        self.label_3 = QtWidgets.QLabel(self.centralwidget)
        self.label_3.setGeometry(QtCore.QRect(30, 190, 120, 16))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.label_3.setFont(font)
        self.label_3.setObjectName("label_3")
        self.label_4 = QtWidgets.QLabel(self.centralwidget)
        self.label_4.setGeometry(QtCore.QRect(30, 220, 180, 16))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.label_4.setFont(font)
        self.label_4.setObjectName("label_4")
        self.label_5 = QtWidgets.QLabel(self.centralwidget)
        self.label_5.setGeometry(QtCore.QRect(30, 240, 170, 31))
        font = QtGui.QFont()
        font.setPointSize(12)
        self.label_5.setFont(font)
        self.label_5.setObjectName("label_5")
        self.label_6 = QtWidgets.QLabel(self.centralwidget)
        self.label_6.setGeometry(QtCore.QRect(80, 30, 481, 31))
        font = QtGui.QFont()
        font.setPointSize(18)
        font.setBold(True)
        font.setWeight(75)
        self.label_6.setFont(font)
        self.label_6.setObjectName("label_6")
        self.txtHMI = QtWidgets.QLineEdit(self.centralwidget)
        self.txtHMI.setGeometry(QtCore.QRect(230, 130, 211, 20))
        self.txtHMI.setObjectName("txtHMI")
        self.txtCustCode = QLineEdit(self.centralwidget)
        self.txtCustCode.setGeometry(QtCore.QRect(230, 160, 211, 20))
        self.txtCustCode.setObjectName("txtCustCode")
        self.txtProdCode = QtWidgets.QLineEdit(self.centralwidget)
        self.txtProdCode.setGeometry(QtCore.QRect(230, 190, 211, 20))
        self.txtProdCode.setObjectName("txtProdCode")
        self.txtCustPartNo = QtWidgets.QLineEdit(self.centralwidget)
        self.txtCustPartNo.setGeometry(QtCore.QRect(230, 220, 211, 20))
        self.txtCustPartNo.setObjectName("txtCustPartNo")
        self.txtLampName = QtWidgets.QLineEdit(self.centralwidget)
        self.txtLampName.setGeometry(QtCore.QRect(230, 250, 211, 20))
        self.txtLampName.setObjectName("txtLampName")
        self.btnSave = QtWidgets.QPushButton(self.centralwidget)
        self.btnSave.setGeometry(QtCore.QRect(130, 280, 131, 41))
        self.btnSave.setObjectName("btnSave")
        self.btnSave.clicked.connect(btnSave_click)

        self.btnCancel = QtWidgets.QPushButton(self.centralwidget)
        self.btnCancel.setGeometry(QtCore.QRect(330, 280, 131, 41))
        self.btnCancel.setObjectName("btnCancel")
        self.btnCancel.clicked.connect(btnCancel_click)
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 21))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(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", "MainWindow"))
          self.label.setText(_translate("MainWindow", "Product as in HMI"))
          self.label_2.setText(_translate("MainWindow", "Customer Code"))
          self.label_3.setText(_translate("MainWindow", "Product Code"))
          self.label_4.setText(_translate("MainWindow", "Customer Part Number"))
          self.label_5.setText(_translate("MainWindow", "Lamp Name & Type"))
          self.label_6.setText(_translate("MainWindow", "Products Data Entry / Update Screen"))
          self.btnSave.setText(_translate("MainWindow", "SAVE"))
          self.btnCancel.setText(_translate("MainWindow", "Cancel"))

    # End Generated Code

    @pyqtSlot() # Signals buttons

    def btnCancel_click(self):
    textboxValue = "Dummy"
    textboxValue = self.txtCustCode.text
    #QMessageBox.question(self, 'Message - pythonspot.com', "You typed: " + textboxValue, QMessageBox.Ok, QMessageBox.Ok)
    print (textboxValue)
    cancelFunction()
def btnSave_click(self):
    print ("Save Clicked")
    insertFunction()

# Functions for signals
def insertFunction():
    print ("Save Clicked")

def cancelFunction():
    print ("Cancel  Clicked")
if __name__ == "__main__":
    import sys
    app = QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())

Answer 1

下面一行返回一个布尔值。

self.txtCustCode = QLineEdit(self.centralwidget)

那么你正在尝试使用setGeometry 属性。这就是为什么它会给你错误。

self.txtCustCode.setGeometry(QtCore.QRect(230, 160, 211, 20))
self.txtCustCode.setObjectName("txtCustCode")