按钮如何删除它所在的 QTableWidget 中的一行

How does a button delete a row in a QTableWidget where it sits

基本上我在 QTableWidget 中的每一行都有一个删除按钮 对于点击事件。

如何找到被点击的特定按钮的行索引?

class WidgetGallery(QDialog):
    def __init__(self, parent=None):
        super(WidgetGallery, self).__init__(parent)
        self.table = QTableWidget(10, 3)
        col_1 = QTableWidgetItem("first_col")
        col_2 = QTableWidgetItem("second_col")
        deleteButton = QPushButton("delete_this_row")
        deleteButton.clicked.connect(self.deleteClicked)
        self.table.setItem(0, 0, col_1)
        self.table.setItem(0, 1, col_2)
        self.table.setCellWidget(0, 2, deleteButton)
        self.mainLayout = QGridLayout()
        self.mainLayout.addWidget(self.table)


    def deleteClicked(self):
        sender = self.sender()
        row = sender.parent().........?

根据您的评论,您正在使用 my previous answer 作为基础,但正如您指出的那样,这些都失败了,因为前一个问题的上下文与您当前的代码不同,在前一个案例中有一个设置按钮的父小部件,并且该小部件只是在 QTableWidget 中设置。在这种情况下,它必须是直接的:

from PyQt5 import QtCore, QtGui, QtWidgets

class WidgetGallery(QtWidgets.QDialog):
    def __init__(self, parent=None):
        super(WidgetGallery, self).__init__(parent)
        self.table = QtWidgets.QTableWidget(10, 3)
        col_1 = QtWidgets.QTableWidgetItem("first_col")
        col_2 =QtWidgets.QTableWidgetItem("second_col")
        deleteButton = QtWidgets.QPushButton("delete_this_row")
        deleteButton.clicked.connect(self.deleteClicked)
        self.table.setItem(0, 0, col_1)
        self.table.setItem(0, 1, col_2)
        self.table.setCellWidget(0, 2, deleteButton)
        self.mainLayout = QtWidgets.QGridLayout(self)
        self.mainLayout.addWidget(self.table)

    @QtCore.pyqtSlot()
    def deleteClicked(self):
        button = self.sender()
        if button:
            row = self.table.indexAt(button.pos()).row()
            self.table.removeRow(row)

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