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  1. Qt
  2. QTBUG-96014

Default style: Customizing ScrollBar contentItem breaks scrolling, errors displayed when interacted with

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Details

    • Windows

    Description

      With "Default" style selected on Windows customizing ScrollBar like demonstrated in docs: https://doc.qt.io/qt-5/qtquickcontrols2-customize.html#customizing-scrollbar breaks the ScrollBar. For one the ScrollBar cannot scroll anymore and it will display an error as soon as the ScrollBar is hovered:

      file:///C:/Qt/6.1.2/mingw81_64/qml/QtQuick/Controls/Windows/ScrollBar.qml:66:49: Unable to assign [undefined] to int

      Different errors are displayed if the arrow buttons (up or down) are hovered:

      file:///C:/Qt/6.1.2/mingw81_64/qml/QtQuick/Controls/Windows/ScrollBar.qml:91:49: Unable to assign [undefined] to int

      file:///C:/Qt/6.1.2/mingw81_64/qml/QtQuick/Controls/Windows/ScrollBar.qml:113:49: Unable to assign [undefined] to int

      Steps to reproduce the problem:

      1. Run the attached project
      2. Try to scroll using the ScrollBar

      Attachments

        1. qtbug96014.zip
          2 kB
          Miika Pernu

        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-95589 Customizing checkbox does not fully work when using example from documentation

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-95593 Customised SpinBox buttons don't work with macOS style

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-98098 Error when Button has a custom background under macOS style

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          relates to

          Task - A task that needs to be done. QTBUG-96733 Prevent users from customising native styles

          • 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.
          • Reported
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              smd Jan Arve
              miikapernu Miika Pernu
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              Dates

                Created:
                Updated:
                Resolved:

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