WebPart::OnClosing Method
Enables derived classes to provide custom handling when a WebPart control is closed on a Web Parts page.
Assembly: System.Web (in System.Web.dll)
The method in the WebPart base class contains no implementation. Derived WebPart controls can override the method if needed to provide custom handling when the control is closed. The WebPartManager control automatically invokes the OnClosing method if you provide an implementation in a derived class.
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.