I'm currently using asp:treeview and considering changing to RadTreeView. In order to avoid lots of rework I like to know whether there is an equivalent to the PopulateOnDemand property of the asp:treeview node in the RadTreeView.
When this property is set to True (in code behind whilst manually loading the tree-nodes) the treeview will add the expand image ('+' sign), when clicked, the server side OnTreeNodePopulate event will be called. New nodes can then be added. See also: