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  1. Qt
  2. QTBUG-68262

Calling sortByColumn() on a view with proxy model set resets header section settings

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: P1: Critical P1: Critical
    • None
    • 5.10.1
    • Widgets: Itemviews
    • None
    • Windows 10, Visual Studio 2017

      I have a table view and a proxy model for sorting. Calling `sortByColumn()` on the view changes section resize mode on the header and section sizes.

      This is a regression found when porting from Qt 5.6.2, where it worked correctly (the mode and section sizes didn't change).

      Example code:

      int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    QTableView tw;
    tw.show();

    QStandardItemModel md;
    md.setColumnCount(1);

    QSortFilterProxyModel proxy;
    proxy.setSourceModel(&md);
    tw.setModel(&proxy);

    tw.horizontalHeader()->setSectionResizeMode(0, QHeaderView::Fixed);

    qDebug() << tw.horizontalHeader()->sectionResizeMode(0);
    tw.sortByColumn(0);
    qDebug() << tw.horizontalHeader()->sectionResizeMode(0);

    return a.exec();
}

      Debug output is:

      QHeaderView::ResizeMode(Fixed)
QHeaderView::ResizeMode(Interactive)

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            tmartsum Thorbjørn Lund Martsum
            chrisaverage Krzysztof Kawa
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              Created:
              Updated:
              Resolved:

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