PYQT Qcombobox 将选定的值设置为变量 [英] PYQT Qcombobox set value selected to a variable

问题描述

我有一个组合框，想将框中选择的值添加到变量中.变量.我从文档中尝试了一些东西，并且仅在将其设置为 Qlabel 时才成功.任何帮助请

I have a combox, and want to add the vaue selected in the box to a variable. The variable. I tried a few things from the documentation and was only successful on setting it to a Qlabel. Any help please

     self.languageLbl = QtGui.QLabel("Download_IVR", self)
     comboBox = QtGui.QComboBox(self)
     comboBox.addItem("IVR_ITALY")
     comboBox.addItem("IVR_FRANCE")
     comboBox.addItem("IVR_SPAIN")
     comboBox.addItem("IVR_GERMANY")
     comboBox.move(650, 250)
     comboBox.resize(150,40)
     self.languageLbl.move(650,150)
     comboBox.activated[str].connect(self.languageChoice)

 def download_button(self):

     ivrLang = self.comboBox.currentText()

我想将 ivrLang 设置为组合框中选择的项目.谢谢！

I want to set ivrLang to the item selected in the combobox. Thanks!

推荐答案

您没有将信号连接到回调函数.您需要:

You aren't connecting your signal to your callback function. You need:

self.combobox.activated[str].connect(self.download_button)

下载按钮应如下所示:

def download_button(self, text):
    irvLang = text

请注意，您还没有对那个变量 irvLang 做任何事情.

Note that you still haven't done anything with that variable irvLang.

此外，使用 self 制作类的组合框和属性也是明智的:

Also it would be wise to make the comboBox and attribute of your class using self:

self.comboBox = QtGui.QComboBox(self)

这是一个完整的示例，可以满足您似乎想要的功能.

Here is a complete example that does what you seem to want.

from PyQt4 import QtGui

class MainWindow(QtGui.QMainWindow):
    def __init__(self):
        super(MainWindow, self).__init__()
        self.cb = QtGui.QComboBox(self)
        self.cb.addItem("One")
        self.cb.addItem("Two")
        self.cb.activated[str].connect(self.selected)

    def selected(self, text):
        self.selected_text = text
        print(self.selected_text)

app = QtGui.QApplication([])
mw = MainWindow()
mw.show()
app.exec_()

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