EventInfo.RemoveEventHandler Method

Removes an event handler from an event source.

Namespace:  System.Reflection
Assembly:  mscorlib (in mscorlib.dll)

'Declaration
Public Overridable Sub RemoveEventHandler ( _
	target As Object, _
	handler As Delegate _
)

Parameters

target
Type: System.Object

The event source.

handler
Type: System.Delegate

The delegate to be disassociated from the events raised by target.

Implements

_EventInfo.RemoveEventHandler(Object, Delegate)

ExceptionCondition
InvalidOperationException

The event does not have a public remove accessor.

ArgumentException

The handler that was passed in cannot be used.

TargetException

The target parameter is Nothing and the event is not static.

-or-

The EventInfo is not declared on the target.

MethodAccessException
NoteNote

In the .NET for Windows Store apps or the Portable Class Library, catch the base class exception, MemberAccessException, instead.

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.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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