WindowsRuntimeMarshal.AddEventHandler<T> Method (Func<T, EventRegistrationToken>, Action<EventRegistrationToken>, T)

.NET Framework (current version)

The .NET API Reference documentation has a new home. Visit the .NET API Browser on to see the new experience.

This API supports the product infrastructure and is not intended to be used directly from your code.

Adds the specified event handler to a Windows Runtime event.

Namespace:   System.Runtime.InteropServices.WindowsRuntime
Assembly:  mscorlib (in mscorlib.dll)

public static void AddEventHandler<T>(
	Func<T, EventRegistrationToken> addMethod,
	Action<EventRegistrationToken> removeMethod,
	T handler


Type: System.Func<T, EventRegistrationToken>

A delegate that represents the method that adds event handlers to the Windows Runtime event.

Type: System.Action<EventRegistrationToken>

A delegate that represents the method that removes event handlers from the Windows Runtime event.

Type: T

A delegate the represents the event handler that is added.

Type Parameters


The type of the delegate that represents the event handler.

Exception Condition

addMethod is null.


removeMethod is null.


requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.

Universal Windows Platform
Available since 8
.NET Framework
Available since 4.5
Portable Class Library
Supported in: portable .NET platforms
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1
Return to top