How to resize columns in QTreeWidget to the minimum space required

Question

I am a student programmer and I am using Qt to build a GUI interface for work. I have a QTreeWidget that has a total of 8 Columns. The input that needs to be en

Answer 1

The problem for me was that StretchLastSection was set to true and if this value is set to true, this property will override the resize mode set on the last section in the header.

Solution:

_treeWidget = new UIWidgetSceneTree();
_treeWidget->header()->setStretchLastSection(false);
_treeWidget->header()->setSectionResizeMode(QHeaderView::ResizeToContents);