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15118679
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2013-02-27T17:42:15.843
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2013-02-27T17:42:15.843
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text
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<p>Here's a simple example. Each <code>QRadioButton</code> is connected to it's own function. You could connect them both to the same function and manage what happens through that, but I thought best to demonstrate how the signals and slots work.</p> <p>For more info, take a look at the PyQt4 <a href="http://pyqt.sourceforge.net/Docs/PyQt4/new_style_signals_slots.html" rel="noreferrer">documentation for new style signals and slots</a>. If connecting multiple signals to the same slot it's sometimes useful to use the <a href="http://pyqt.sourceforge.net/Docs/PyQt4/qobject.html#sender" rel="noreferrer"><code>.sender()</code></a> method of a <code>QObject</code>, although in the case of <code>QRadioButton</code> it's probably easier to just check the <a href="http://pyqt.sourceforge.net/Docs/PyQt4/qabstractbutton.html#isChecked" rel="noreferrer">.isChecked()</a> method of your desired buttons.</p> <pre><code>import sys from PyQt4.QtGui import QApplication, QWidget, QVBoxLayout, \ QLineEdit, QRadioButton class Widget(QWidget): def __init__(self, parent=None): QWidget.__init__(self, parent) self.widget_layout = QVBoxLayout() self.radio1 = QRadioButton('Radio 1') self.radio2 = QRadioButton('Radio 2') self.line_edit = QLineEdit() self.radio1.toggled.connect(self.radio1_clicked) self.radio2.toggled.connect(self.radio2_clicked) self.widget_layout.addWidget(self.radio1) self.widget_layout.addWidget(self.radio2) self.widget_layout.addWidget(self.line_edit) self.setLayout(self.widget_layout) def radio1_clicked(self, enabled): if enabled: self.line_edit.setText('Radio 1') def radio2_clicked(self, enabled): if enabled: self.line_edit.setText('Radio 2') if __name__ == '__main__': app = QApplication(sys.argv) widget = Widget() widget.show() sys.exit(app.exec_()) </code></pre>
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1. POchange text of lineEdit when a radio button is selected in pyqt
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1. USGary Hughes
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1. POchange text of lineEdit when a radio button is selected in pyqt
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