Assembly: mscorlib (in mscorlib.dll)
The event source.
The delegate to be disassociated from the events raised by target.
The event does not have a public remove accessor.
The handler that was passed in cannot be used.
The target parameter is a null reference (Nothing in Visual Basic) and the event is not static.
The EventInfo is not declared on the target.
The caller does not have access permission to the member.
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, 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.