PyQt6 Selecting multiple items from a QComboBox

mpnix

I have a QComboBox populated from a database table. I want the user to be able to select one or more items to search other tables in the database. I considered the following to be logical but it's not permissible:
self.tagComboBox.setSelectionMode(QComboBox.InsertPolicy.QAbstractItemView.MultiSelection)

My code to establish the QComboBox and window:

from PyQt6.QtCore import Qt
from PyQt6.QtGui import QPixmap
from PyQt6.QtWidgets import (
    QApplication,
    QCheckBox,
    QComboBox,
    QDial,
    QDoubleSpinBox,
    QLabel,
    QLineEdit,
    QListWidget,
    QMainWindow,
    QSlider,
    QAbstractItemView,
    QSpinBox
)

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

        self.setWindowTitle("SQL Lite tags to combobox")

        self.tagComboBox = QComboBox()
        self.tagComboBox.setInsertPolicy(QComboBox.InsertPolicy.InsertAlphabetically)
#       self.tagComboBox.setSelectionMode(QComboBox.InsertPolicy.QAbstractItemView.MultiSelection)
        self.tagComboBox.setEditable(True)
        self.tagComboBox.currentIndexChanged.connect(self.index_changed) # Sends a signal with the new index value
        self.tagComboBox.currentTextChanged.connect(self.text_changed)   # Sends a signal with the new text

        self.setCentralWidget(self.tagComboBox)

Pl45m4

@mpnix

Quick google search:

https://gis.stackexchange.com/questions/350148/qcombobox-multiple-selection-pyqt5

Or you translate this code to Python:

https://stackoverflow.com/questions/6505627/how-to-make-qcombobox-as-multiselect-in-qt

Anyway, why do you want to use a QComboBox as it's not intended to be used this way?!
Maybe a QListWidget / QListView is more fitting...
(there you have proper selection model support and it's more intuitive than a dropdown, where you have to click multiple times and close it manually again)

mpnix

@Pl45m4 Thank you. My Google-foo (or perhaps it's Bing-fooey!), lacks your power!

And, as to your second question: Because I'm still finding my way around Qt. I didn't really like the ComboBox behaviour, I'll have a look at the alternatives you suggested.