QComboBox主要实现下拉列表,以及选中列表中元素的回调,回调方法和QPushButton类似,都是基于Qt的信号和槽实现。 #-*- coding:utf-8 -*- import sys from PyQt5.QtWidgets import (QApplication,QWidget,QLabel,QComboBox) class Example(QWidget): def __ini
然后根据qcombobox当前文本创建一个方法，将适当的小部件设置为可见，并将其连接到qcombobox的激活信号。
void QComboBox::activated ( int index ) [signal]This signal is sent when an item in the combobox is activated by the user. The item's index is given.void QComboBox::activated ( const QString & text ) [signal]This is an overloaded member function, provided for convenience....
parent=None):super(ComboWidget,self).__init__(parent)self.setGeometry(50,50,200,200)layout=QtW...
Example #4Source File: gui.py From autopilot with Mozilla Public License 2.0 5 votes def __init__(self): # type: () -> None QtGui.QDialog.__init__(self) # Sound type dropdown type_label = QtGui.QLabel("Sound Type:") self.type_selection = QtGui.QComboBox() self.type_...
The activated signal is sent when the user chooses an item in the combobox. QComboBox exampleThe following example shows the selected item in a nearby label. simple.py #!/usr/bin/python import sys from PyQt6.QtWidgets import (QWidget, QLabel, QHBoxLayout, QComboBox, QApplication) class...
要监控QComboBox的选项变化,你可以连接上述提到的信号(如currentIndexChanged、currentTextChanged和activated)到相应的槽函数。这样,每当选项发生变化时,槽函数就会被调用,从而允许你执行所需的逻辑。 5. QComboBox变化时更新界面或执行其他操作的建议 当QComboBox的选项发生变化时,你可能需要更新界面上的其他控件或执行其...
int findData ( const QVariant & data, int role = Qt::UserRole, Qt::MatchFlags flags = static_cast<Qt::MatchFlags> ( Qt::MatchExactly | Qt::MatchCaseSensitive ) ) const int findText ( const QString & text, Qt::MatchFlags flags = static_cast<Qt::MatchFlags> ( Qt::MatchExactly | ...
QtWidgets import QApplication, QMainWindow, QComboBox class MyWindow(QMainWindow): def __init__(self): super().__init__() self.setWindowTitle("QComboBox Example") self.setGeometry(200, 200, 300, 200) combobox = QComboBox(self) combobox.addItem("Option 1") combobox.addItem("Option 2...
activated() Used when an item is selected by the user. currentIndexChanged() Used when the item in the list has changed. ComboBox Usage The following sections provide examples that explain some different uses of the ComboBox using the QComboBox module of the PyQt library. Example 1: Create ...