Assembly: System.Web (in system.web.dll)
A WebPart control that is closed is not rendered on the page and does not participate in page events. However, it is maintained in a page catalog by the Web Parts application, and can be added back to the page by users if the appropriate user interface (UI) is provided. For more information, see AllowClose.
Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.