How can I programmatically click a TreeView TreeNode so it appears highlighted in the list and fires the AfterSelect event?

Question

I have a TreeView control in a Winforms app, and basically the objective is to display a form that contains a TreeView control, and I want to display the form with a node opened (easy - EnsureVisible) and selected.

The problem that I'm running into is that when I set the TreeView control's SelectedNode property, the node isn't highlighted and the AfterSelect event isn't firing as I would expect it to. The AfterSelect thing is easy to code around, but the lack of highlighting is annoying.

Answer 1

The easiest way to programmatically do this (that I have found) is to fake the click event. I needed to do this as when I searched for a node using TreeView.Nodes.Find(), I needed it to click each level of the hierarchy on the way down. So I basically did the following:

tvMyTreeView_NodeMouseClick(tvMyTreeView, new TreeNodeMouseClickEventArgs(myNode, MouseButtons.Left, 1, 0, 0));

Which fired my event and faking a left single click on the myNode node. Inside that event you can format e.Node however you would want to colourise it. Hope this helps.

Answer 2

Is it because the TreeView doesn't have focus? Does setting the TreeView's HideSelection property to False change the behavior you're seeing?