Python Dropdown mit QT

Question

Wie erstelle ich ein Dropdown Auswahlfeld mit PyQT 5?

Answer 1

Mit einer QComboBox.

# -*- coding: utf-8 -*-

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QComboBox, QLabel, QVBoxLayout, QWidget

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()

        self.setWindowTitle("Dropdown mit PyQt")
        self.setGeometry(100, 100, 400, 200)

        layout = QVBoxLayout()

        self.label = QLabel("Waehle eine Option:")
        layout.addWidget(self.label)

        self.combo_box = QComboBox()
        self.combo_box.addItem("Option 1")
        self.combo_box.addItem("Option 2")
        self.combo_box.addItem("Option 3")
        self.combo_box.addItem("Option 4")
        self.combo_box.currentIndexChanged.connect(self.on_combobox_changed)
        layout.addWidget(self.combo_box)

        central_widget = QWidget()
        central_widget.setLayout(layout)
        self.setCentralWidget(central_widget)

    def on_combobox_changed(self, index):
        selected_option = self.combo_box.currentText()
        self.label.setText(f"Ausgewaehlte Option: {selected_option}")

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = MainWindow()
    window.show()
    sys.exit(app.exec_())