Enables a server control to perform final clean up before it is released from memory.
Assembly: System.Web (in System.Web.dll)
The following code example overrides the method to close the HtmlTextWriter object associated with a control, and call the method on a Button control, named myButton. If an Exception is thrown when this version of the method is called, the control writes a message to the current HttpResponse object.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.