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  1. Qt
  2. QTBUG-135328

QTableView doesn't update scrollbar maximum after model has updated

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    • Icon: Bug Bug
    • Resolution: Fixed
    • Icon: Not Evaluated Not Evaluated
    • None
    • 6.8.2
    • Widgets: Itemviews
    • None
    • macOS, Windows

      QTableView doesn't update the maximum of vertical scrollbar after items has been inserted into the model. This behavior makes it not possible to scrollTo new indexes.

      view.show();
for (int i = 0; i < 100; ++i)
    model.invisibleRootItem()->appendRow(new QStandardItem(QString::number(i)));
view.setModel(&model);
qDebug() << view.verticalScrollBar()->maximum();
for (int i = 0; i < 100; ++i)
    model.invisibleRootItem()->appendRow(new QStandardItem(QString::number(i)));
qDebug() << view.verticalScrollBar()->maximum();
view.scrollToBottom();
qDebug() << view.verticalScrollBar()->maximum();

       The output of minimal example is

      95
95
195

      The second line indicates that the maximum of vertical scrollbar is not updated.

        1. main-1.cpp
          0.7 kB
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            qt.team.quick.subscriptions Qt Quick and Widgets Team
            yuanxun Xun Yuan
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              Created:
              Updated:
              Resolved:

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