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SocketAsyncEventArgs.UserToken Property

Gets or sets a user or application object associated with this asynchronous socket operation.

Namespace:  System.Net.Sockets
Assembly:  System (in System.dll)

'Declaration
Public Property UserToken As Object

Property Value

Type: System.Object
An object that represents the user or application object associated with this asynchronous socket operation.

This property can be used by an application to associate an application state object with the SocketAsyncEventArgs object. Primarily, this property is a way for an application to pass state to the application’s event handler (for example, the asynchronous operation completion method).

This property is used with all of the asynchronous socket (xxxAsync) methods.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5 SP1, 3.0 SP1, 2.0 SP1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

.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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