Resizing QTableWidget Columns and Rows to Fill Table

Question

I have a QTableWidget with an N number of columns, which when the number of columns are set, they automically fill in the entire QTableWidget. When I try to dynamically change the number of columns to N/2 columns, the size of each column does not change. This results in the right half the QTableWidget being nothing but whitespace.

Conversly, if I were it reset the column count to 2*N, the column widths adjust themselves appropriately and fill the QTableWidget.

I'm wondering how I can reset the number of columns and row without the QTableWidget having any whitespace?

Calum Murray · Accepted Answer · 2013-07-01T20:28:59.190

32

Have you tried setting the QHeaderView's Resize Mode?

    QTableWidget* myTable = new QTableWidet;
    QHeaderView* header = myTable->horizontalHeader();
    header->setResizeMode(QHeaderView::Stretch);

Edit: As pointed out, in Qt 5:

    QTableWidget* myTable = new QTableWidet;
    QHeaderView* header = myTable->horizontalHeader();
    header->setSectionResizeMode(QHeaderView::Stretch);

edited Jul 01 '13 at 20:28

answered Jul 01 '13 at 19:07

Calum Murray

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This works. However, `setSectionResizeMode` should be used instead. `setResizeMode` is not available in Qt5. However, it seems I have to reset the mode every time I update the row or column count. – sj755 Jul 01 '13 at 19:23
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[QHeaderView::setStretchLastSection(true)](http://qt-project.org/doc/qt-5.0/qtwidgets/qheaderview.html#stretchLastSection-prop) might also be an option, depending on your application. – Phlucious Jul 01 '13 at 19:42
`myTable.horizontalHeader().setSectionResizeMode(QtWidgets.QHeaderView.Stretch)` in pyqt5 – giuliano-oliveira Sep 22 '20 at 22:42

Resizing QTableWidget Columns and Rows to Fill Table

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