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c++qtqtableview

Columns auto-resize to the size of QTableView

I have just managed to make a QTableView work with my model. It has fixed 3 columns. When I open a window, it looks ok, but when I resize the window, the QTableView itself gets resized, but columns' width remains the same.

I want columns to resize to fit the edges of QTableView every time the window gets resized.

Is there any built-in way to make it work?

Solution

  • There is a header flag to ensure that the QTableView's last column fills up its parent if resized. You can set it like so:

    table_view->horizontalHeader()->setStretchLastSection(true);

    However, that does not resize the other columns proportionately. If you want to do that as well, you could handle it inside the resizeEvent of your parent thusly:

    void QParent::resizeEvent(QResizeEvent *event) {
    table_view->setColumnWidth(0, this->width()/3);
    table_view->setColumnWidth(1, this->width()/3);
    table_view->setColumnWidth(2, this->width()/3);

    QMainWindow::resizeEvent(event);
}

    QParent class is subclass of QMainWindow.