問題描述

我有一個名為test()"的方法，它將 3 個單行表加載到滾動條中.

I have a method named 'test()' that loads 3 one-row tables into a scrollbar.

由于某種原因，我無法弄清楚，但是，如果我只是在加載時激活 test() 它會起作用，但如果我將其注釋掉然后嘗試通過按下按鈕來激活它，它就不起作用.

For some reason that I cannot figure out, however, the while it works if I simply activate test() on load, it doesn't work if I comment it out and then try to activate it via the push of a button.

這里是主模塊(帶有 test())

Here is the main module (with test())

from PyQt5 import QtCore, QtWidgets
from design import Ui_MainWindow

class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
    def __init__(self, *args, **kwargs):
        QtWidgets.QMainWindow.__init__(self, *args, **kwargs)
        self.setupUi(self)
        #test(self)

def test(self):
    from random import randint
    x = randint(0, 99)
    print(x)
    height = 30
    yPos = 0
    for i in range(3):

        rowVals = ['test%s' % str(x + i)]

        qTbl = QtWidgets.QTableWidget(self.sawDoc)
        qTbl.setObjectName("tbl%s" % (i))
        qTbl.setGeometry(QtCore.QRect(0, yPos, 880, height))
        qTbl.horizontalHeader().setVisible(False)
        qTbl.verticalHeader().setVisible(False)
        yPos += height

        qTbl.setRowCount(1)
        qTbl.setColumnCount(len(rowVals))
        for r, cell in enumerate(rowVals):
            item = QtWidgets.QTableWidgetItem()
            item.setText(str(cell))
            qTbl.setItem(0, r, item)

if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    w = MainWindow()
    w.show()
    sys.exit(app.exec_())

這里是設(shè)計模塊(帶有按鈕)

And here is the design module (with the button)

from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(896, 453)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.scrDoc = QtWidgets.QScrollArea(self.centralwidget)
        self.scrDoc.setGeometry(QtCore.QRect(0, 0, 891, 391))
        self.scrDoc.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOn)
        self.scrDoc.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
        self.scrDoc.setWidgetResizable(False)
        self.scrDoc.setObjectName("scrTest")
        self.sawDoc = QtWidgets.QWidget()
        self.sawDoc.setGeometry(QtCore.QRect(0, 0, 869, 300))
        self.sawDoc.setObjectName("sawDoc")
        self.scrDoc.setWidget(self.sawDoc)
        self.btnTest = QtWidgets.QPushButton(self.centralwidget)
        self.btnTest.setGeometry(QtCore.QRect(430, 400, 80, 15))
        self.btnTest.setObjectName("btnTest")
        MainWindow.setCentralWidget(self.centralwidget)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

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

        self.btnTest.clicked.connect(self.test)

    def test(self):
        import main
        main.test(self)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "昊珩のCAT工具"))
        self.btnTest.setText(_translate("MainWindow", "Test"))



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

當(dāng)我按下按鈕時，什么也沒有發(fā)生(除了打印成功).

Simply nothing happens when I push the button (except for the print out working successfully).

誰能告訴我怎么了?

推薦答案

一開始是父母給孩子看，之后孩子自己負(fù)責(zé)展示自己，簡單的解決方案是使用show():

The parents show the children at the beginning, but afterwards it is the responsibility of the children to show themselves, the simple solution is to use show():

qTbl = QtWidgets.QTableWidget(self.sawDoc)
qTbl.show()

但是我看到你以一種不優(yōu)雅的方式實現(xiàn)解決方案，連接在 main.py 中完成，不要修改 Qt Designer 生成的文件(刪除 design.py 中的連接和測試方法)您必須使用布局并在其中添加 QTableWidget.

But I see that you are implementing the solution in an inelegant way, the connection do it in main.py, do not modify the file generated by Qt Designer (delete the connection and the test method in design.py) You must use a layout and there add the QTableWidget.

class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
    def __init__(self, *args, **kwargs):
        QtWidgets.QMainWindow.__init__(self, *args, **kwargs)
        self.setupUi(self)
        self.btnTest.clicked.connect(self.test)

    def test(self):
        from random import randint
        x = randint(0, 99)

        lay = QtWidgets.QVBoxLayout(self.sawDoc)
        for i in range(3):
            rowVals = ['test%s' % str(x + i)]
            qTbl = QtWidgets.QTableWidget()
            qTbl.setObjectName("tbl%s" % (i))
            qTbl.horizontalHeader().hide()
            qTbl.verticalHeader().hide()
            qTbl.setRowCount(1)
            qTbl.setColumnCount(len(rowVals))
            for r, cell in enumerate(rowVals):
                item = QtWidgets.QTableWidgetItem()
                item.setText(str(cell))
                qTbl.setItem(0, r, item)
            qTbl.resize(qTbl.sizeHint())
            lay.addWidget(qTbl)

這篇關(guān)于在按鈕按下的滾動區(qū)域中加載 QTableWidgets的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網(wǎng)！