When we click on the text or image portion of a collapsed node, *without* clicking on the + / - beside that node, the node expands.  

We want the node to stay collapsed unless we double click on it or click the + / - beside it, similar to the way a treeview node works in Windows Explorer.

Is there a property of the treeview that we can set to stop it from expanding on the click, or do you have any other suggestions on how to work around this to make it work like Windows Explorer?