RadTreeView supports its own context menus. You can simply build these menus in
design time or in the codebehind.
Either way, the approach is quite straight-forward.
The built-in context menu of the treeview supports multi-level items. In other words,
you can define root items, second level items, etc. After the context menus have
been added to the ContextMenus collection of the treeview, you
should set the ContextMenuID property of each TreeNode so that
the proper menu appears upon right-clicking a node. If the ContextMenuID
property is not set, the first context menu in the ContextMenus
collection will be shown upon right-clicking a node.
If you want to disable the context menu for a certain node, you should disable the
EnableContextMenu property of this node.
Right-click a node with the mouse to display the context menu.