ListBox.OnPreRender(EventArgs) Method


Configures the ListBox control prior to rendering on the client.

protected public:
 override void OnPreRender(EventArgs ^ e);
protected internal override void OnPreRender (EventArgs e);
override this.OnPreRender : EventArgs -> unit
Protected Friend Overrides Sub OnPreRender (e As EventArgs)



An EventArgs object that contains the event data.


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.

Applies to

See also