PyQt5 - Show pop up items of ComboBox when push button is pressed

PyQt5 - Show pop up items of ComboBox when push button is pressed

To show the pop-up items of a QComboBox in PyQt5 when a QPushButton is pressed, you can use the showPopup method of the QComboBox. This method is specifically designed to programmatically display the drop-down list of the combo box.

Here's an example of how to implement this:

  1. Import PyQt5 Modules: First, you need to import the necessary modules from PyQt5.

    from PyQt5.QtWidgets import QApplication, QWidget, QVBoxLayout, QPushButton, QComboBox

  2. Create the Main Window: Then, create a main window class that inherits from QWidget. In this window, you will add both the QComboBox and the QPushButton.

  3. Add the ComboBox and Button: Add a QComboBox and a QPushButton to the main window. Populate the combo box with some items.

  4. Connect the Button��s Click Event: Connect the button��s click event to a function that calls the showPopup method of the combo box.

Here's a complete example:

import sys from PyQt5.QtWidgets import QApplication, QWidget, QVBoxLayout, QPushButton, QComboBox class MainWindow(QWidget): def __init__(self): super().__init__() # Create layout layout = QVBoxLayout(self) # Create ComboBox self.comboBox = QComboBox() self.comboBox.addItems(["Item 1", "Item 2", "Item 3"]) # Create Button button = QPushButton("Show ComboBox Items") button.clicked.connect(self.show_combobox_items) # Add widgets to layout layout.addWidget(self.comboBox) layout.addWidget(button) def show_combobox_items(self): # Show ComboBox items self.comboBox.showPopup() # Create the application app = QApplication(sys.argv) # Create and show the main window window = MainWindow() window.show() # Run the application sys.exit(app.exec_())

When you run this code, a window with a combo box and a button will appear. Clicking the button will display the items of the combo box as if you had clicked on the combo box itself.

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