Removes an event handler from an event source.
[Visual Basic] Public Sub RemoveEventHandler( _ ByVal target As Object, _ ByVal handler As Delegate _ ) [C#] public void RemoveEventHandler( object target, Delegate handler ); [C++] public: void RemoveEventHandler( Object* target, Delegate* handler ); [JScript] public function RemoveEventHandler( target : Object, handler : Delegate );
- The event source.
- The delegate to be disassociated from the events raised by target.
|InvalidOperationException||The MethodInfo returned by GetAddMethod is a null reference (Nothing in Visual Basic).|
|ArgumentException||The handler that was passed in cannot be used.|
|TargetException||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.
|MethodAccessException||The caller does not have access permission to the member.|
This method attempts to remove the delegate that may synchronize this event on the target object.
When an event is raised by target, the method or methods encapsulated by handler will no longer be invoked.
Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, .NET Compact Framework, Common Language Infrastructure (CLI) Standard
.NET Framework Security:
- ReflectionPermission when invoked late-bound through mechanisms such as Type.InvokeMember. Associated enumeration: ReflectionPermissionFlag.MemberAccess.
- ReflectionPermission for reflecting non-public objects. Associated enumeration: ReflectionPermissionFlag.MemberAccess