I find the standard windows treeview behavior selection behavior to be quite annoying. For example, if you are using Explorer and right click on a node and hit Properties, it highlights the node and shows the properties dialog for the node you clicked on. But when you return from the dialog, the highlighted node was the node previously selected/highlighted before you did the right-click. I find this causes usability problems because I am forever being confused on whether I acted on the right node.
So in many of our GUIs, we change the selected tree node on a right-click so that there is no confusion. This may not be the same as a standard iwndos app like Explorer (and I tend to strongly model our GUI behavior after standard window apps for usabiltiy reasons), I believe that this one exception case results in far more usable trees.
Here is some code that changes the selection during the right click:
private void tree_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
// only need to change selected note during right-click - otherwise tree does
// fine by itself
if ( e.Button == MouseButtons.Right )
Point pt = new Point( e.X, e.Y );
tree.PointToClient( pt );
TreeNode Node = tree.GetNodeAt( pt );
if ( Node != null )
if ( Node.Bounds.Contains( pt ) )
tree.SelectedNode = Node;
contextMenuTree.Show( tree, pt );
This is the best solution for me because it actually selects the node you clicked on.