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  1. Qt
  2. QTBUG-120272

QTableview range selection using shift+click changed after 1 pixel move

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: P2: Important P2: Important
    • None
    • 6.2.4, 6.3, 6.4, 6.5, 6.6
    • Widgets: Itemviews
    • None
    • macOS, Windows

      Selecting items using Shift key is very hard. The selection is lost after clicking the last item while pressing shift key. It's very annoying. It looks like it's a regression from previous versions. It was supposed to be fixed. See this bug :  https://bugreports.qt.io/browse/QTBUG-81542

       

      The issue appeared in Qt 6.2.4 and is still present in Qt 6.6. It worked well in Qt 6.2.3.

      I attached a video showing the issue in Qt 6.2.3, 6.2.4 and Qt 6.6.0. I'm holding shift key to select multiple items.

       

      I also attached the sample project based on relationaltablemodel sample.

       

      I've just added these lines in relationaltablemodel sample :

      // Code added to reproduce the bug
view->setSelectionMode(QAbstractItemView::ExtendedSelection);
view->setDragEnabled(true);
// end of added code

       

      For those having trouble with this bug, I've found this workaround that seems to work well:

      void InheritedTableView::mousePressEvent(QMouseEvent *event)
{

#if (QT_VERSION >= QT_VERSION_CHECK(6, 2, 4))
    // workaround for selection bug using shift key in Qt 6.2.4 and above (no bug in Qt 6.2.3):
    // when the mouse moves 1 pixel when making a range selection (shift + left-mouse-button), the selection resets to just the last item clicked.
    // see https://bugreports.qt.io/browse/QTBUG-120272 

   if (event->modifiers() & Qt::ShiftModifier)
   {
        bool isDragEnabled = dragEnabled();
        setDragEnabled(false);
        QTableView::mousePressEvent(event);
        setDragEnabled(isDragEnabled);
        return;
   }
#endif   

    QTableView::mousePressEvent(event); 

}

       

        1. bug-qtableview-selection-shift-key.mp4
          11.83 MB
        2. QTableView-shift-key-bug-project.zip
          5 kB
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            vhilshei Volker Hilsheimer
            maxime maxime
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              Created:
              Updated:

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