QTreeView remove decoration/expand button for all items

Question

I want to have my QTreeView always expanded all of the items. In that case, all expand button / decoration are unnecessary and I want get rid of them. How can I delete all of them? setRootIsDecorated will only delete that buttons on first level...

Answer 1

This is what I've done in the past for this problem, it's a bit of a hack but it's worked pretty well. In this case none.png doesn't exist.

treeView->setStyleSheet( "QTreeView::branch {  border-image: url(none.png); }" );