Assembly: System.Web (in system.web.dll)
The method in the WebPart base class contains no implementation.Notes to Inheritors A derived control needs to override the OnEditModeChanged method, and use the overridden method to raise a custom event. Developers can raise custom events or carry out other actions. The method is called when the BeginWebPartEditing and EndWebPartEditing methods are called during editing.
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.