ListBox.OnPreRender(EventArgs) Method
Definition
Important
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Configures the ListBox control prior to rendering on the client.
protected:
override void OnPreRender(EventArgs ^ e);protected public:
override void OnPreRender(EventArgs ^ e);protected override void OnPreRender (EventArgs e);protected internal override void OnPreRender (EventArgs e);override this.OnPreRender : EventArgs -> unitProtected Overrides Sub OnPreRender (e As EventArgs)Protected Friend Overrides Sub OnPreRender (e As EventArgs)Parameters
Remarks
The OnPreRender method is used primarily by control developers, when deriving a custom control from the ListBox class. The OnPreRender method allows derived classes to handle the PreRender event without attaching a delegate. This is the preferred technique for handling the event in a derived class.
The OnPreRender method performs any necessary prerendering steps prior to saving view state and rendering content for the ListBox.
Notes to Inheritors
When overriding the OnPreRender(EventArgs) method in a derived class, be sure to call the OnPreRender(EventArgs) method of the base class so that registered delegates receive the event.
