Set column width for QTreeWidget

Question

Is there any way to set column width for QTreeWidget from code? I want to chage default width of first column. I'm using PySide.

score 8 · Accepted Answer · answered Feb 04 '13 at 17:59

8

QHeaderView::resizeSection() should do the trick, in C++ it would look like this:

myTreeWidget->headerView()->resizeSection(0 /*column index*/, 100 /*width*/);

answered Feb 04 '13 at 17:59

Chris

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I think I can adopt it for PySide. Thanks – xander27 Feb 05 '13 at 04:37
2

There is no function `headerView` in `QTreeWidget`. I think you really meant to use `QTreeWidget::header()` (at least for Qt5 - maybe the answer was for Qt4) – Raven Feb 28 '21 at 14:32

score 3 · Answer 2 · answered Mar 26 '19 at 10:36

For people looking for a C++ Qt solution (tested with 5.12):

// Important to call setMinimumSectionSize because resizeSection wont work if your width is less than the minimum
treeWidget->header()->setMinimumSectionSize(25);
treeWidget->header()->resizeSection(1 /*column index*/, 25 /*width*/);

// You might also need to use this if you want to limit the size of your last column:
treeWidget->header()->setStretchLastSection(false);

score 2 · Answer 3 · answered Dec 25 '18 at 08:02

In Pyside2 there is no resizeSection

you can use this in PySide2:

header = self.treeWidget.header()
header.setSectionResizeMode(QtWidgets.QHeaderView.ResizeToContents)
header.setStretchLastSection(False)
header.setSectionResizeMode(5, QtWidgets.QHeaderView.Stretch)

Set column width for QTreeWidget

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