Assembly: System.Web (in System.Web.dll)
The method is called during the processes that begin or end editing of the control specified by the webPart parameter, and those that begin or end a connection that includes webPart.
At the beginning of the edit and connection processes, webPart is the control that has been selected to be edited or to enter a connection.
At the end of the edit and connection processes, null is passed to the method, which results in the currently selected control no longer being selected.
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.