ContextMenu Property

Event fired when the context menu is being shown for one of the grid's elements. Corresponds to the browser's ContextMenu event. This is a cancelable event. The event handler gets two parameters: sender and args. The sender is a reference to the grid's client side object; the browser's event object can be obtained off the args parameter: args.get_browserEvent();
To cancel this event call args.set_cancel(true);
To determine which object type the event has happenned for call args.get_type();
Available types of objects are: "cell", "row", "header", "footer".
To get reference to the corresponding client side object call args.get_item();

'Declaration
 
Public Property ContextMenu As String

public string ContextMenu {get; set;}