使用QPushButton按下按钮发送参数

时间:2013-12-20 00:12:21

标签: python qt pyqt signals-slots qpushbutton

我有一个QDialog,一个QLabel,一个QLineEdit和一个QPushButton“Find”。按下按钮后,我想将在QLineEdit中输入的文本发送到另一个将处理查找按钮操作的函数。

# shows and handles the find dialog
def handleFind(self):
    findDialog = QDialog()
    findDialog.setWindowTitle("Find")
    grid = QGridLayout()
    findDialog.setLayout(grid)

    findLabel = QLabel("Find what", findDialog)
    grid.addWidget(findLabel,1,0)
    findField = QLineEdit(findDialog)
    grid.addWidget(findField,1,1)
    enteredText = findLabel.text()
    findButton = QPushButton("Find", findDialog)
    # how to send enteredText as parameter to the find function
    findButton.clicked.connect(self.find) 
    grid.addWidget(findButton,2,1)

    findDialog.exec_()

# find function: search in the first column of the table   
def find(self):
    #to do
    names = NvmQtModel.__imp.parameterNames()

如何将QLineEdit中输入的文本作为参数发送到函数find

1 个答案:

答案 0 :(得分:1)

您可以使用lambda发送查找文本,如下所示:

    findButton.clicked.connect(
        lambda: self.find(findField.text()))