This event only occurs when a menu item has submenu items to display. You can use this event handler to add, remove, enable, disable, check, or uncheck menu items based on the state of your application before they are displayed. For more information about handling events, see Consuming Events.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0