Raises the System.Web.UI.Control.PreRender event.
- e
An EventArgs that contains event data.
The TreeView.OnPreRender(EventArgs) method is overridden to register for postback. If client script is enabled, it also renders the necessary script and hidden fields.
Raising an event invokes the event handler through a delegate. For more information, see Consuming Events.
The TreeView.OnPreRender(EventArgs) 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.