Redirecting from a Context Menu Selection
To redirect to another web page based on clicking a Context Menu, set the OnClientContextMenuClicking property to a JavaScript function that takes two arguments:
sender: a reference to the RadTreeView
eventArgs: contains a reference to the clicked Menu Item, the Node under the Context Menu and the set_cancel() function used for aborting the Context Menu click.
The example below gets the Context Menu Item and sets the window url.
<telerik:RadTreeView RenderMode="Lightweight" ID="RadTreeView1" runat="server"
EnableDragAndDrop="True"
OnClientContextMenuItemClicking="clientContextMenuClicking"
Skin="Vista">
</telerik:RadTreeView>
function clientContextMenuClicking(sender, eventArgs) {
var menuItem = eventArgs.get_menuItem();
window.location.href = "https://en.wikipedia.org/wiki/" + menuItem.get_text();
}