TreeView::OnPreRender Method
Raises the Control::PreRender event.
Assembly: System.Web (in System.Web.dll)
Parameters
- e
- Type: System::EventArgs
An System::EventArgs that contains event data.
The OnPreRender 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 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 the OnPreRender method in a derived class, be sure to call the OnPreRender method for the base class so that registered delegates receive the event.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.