Question

Is it possible to disable the option to get into “Rename” mode when clicking on a tree-node?
I don’t want to disable renaming completely, only to not allow doing it by clicking on the node.

Answer 1

You’ll have to turn the LabelEdit property on and off as needed:

    private void startLabelEdit() {
        treeView1.LabelEdit = true;
        treeView1.SelectedNode.BeginEdit();
    }

    private void treeView1_AfterLabelEdit(object sender, NodeLabelEditEventArgs e) {
        treeView1.LabelEdit = false;
    }

Beware that this has side effects, the LabelEdit property is a style flag for the native Windows control. Changing it requires completely destroying the window and re-creating it from scratch. The most visible side-effect is a small flicker when the window redraws itself after getting created. There could be other ones, I didn’t see anything go wrong myself.