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  1. Qt
  2. QTBUG-100128

QListWidget/QListView: item widget disappears when item is dragged and dropped on itself

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    • a815c40e7 (dev), 74ee445a6 (tqtc/lts-6.2), cfb1b9661 (6.5), 45b996de8 (tqtc/lts-5.15)

    Description

      Hello,

      Issue: QMainWindow with QListWidget that has implemented drag & drop support using InternalMove. QListWidgetItem has set custom QWidget.

      The issue is that on drop event (with is Qt::TargetMoveAction) item is re-created (item is deleted and new one is added) and that behaviour is not consistent. For example sometimes it happens when dropping between other items, but usually (reproducible 100%) happens when dropping on bottom of QListWIdget window where there is no items.

      Expected behaviour is that item changes it's order on the list.

      Issue noticed on Windows with Qt 5.15.2, using 5.14.2 can't reproduce issue.

      Attachments

        1. 2023-03-24 10-26-47.mkv
          1.86 MB
        2. qtbug-100128.tgz
          1 kB
        3. QTBUG-100128.tgz
          4 kB
        4. QTBUG-100128-rev.tar.gz
          4 kB

        Issue Links

          resulted from

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-87057 QListView item looses items from models that don't override moveRows during internal drag'n'drop

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
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              axelspoerl Axel Spoerl
              lugru Łukasz Grużewski
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              Dates

                Created:
                Updated:
                Resolved: