Menu.OnPreRender(EventArgs) Method
Definition
Important
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Raises the PreRender event.
protected public:
override void OnPreRender(EventArgs ^ e);protected internal override void OnPreRender (EventArgs e);override this.OnPreRender : EventArgs -> unitProtected Friend Overrides Sub OnPreRender (e As EventArgs)Parameters
Remarks
The OnPreRender method is called by the Menu control to raise the PreRender event. It is generally used by control developers when extending the Menu class.
Raising an event invokes the event handler through a delegate. For more information, see Handling and Raising Events.
The OnPreRender method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.
Notes to Inheritors
When overriding OnPreRender(EventArgs) in a derived class, be sure to call the base class's OnPreRender(EventArgs) method so that registered delegates receive the event.
