I am using the treeview control (nice by the way), and I want to add a drop down menu to the nodes, and that menu may have 5 items... but only some of them are shown based on the properties of the node... For instance, I want to hide 2 items, when the node is checked for instance. The problem is Setting the Visibility to Hidden, hides the node, but leaves a blank space in the menu... Is there a way to get rid of that behavior