IAsyncResult.AsyncState Property

Gets a user-defined object that qualifies or contains information about an asynchronous operation.

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

Object AsyncState { get; }
/** @property */
Object get_AsyncState ()

function get AsyncState () : Object

Property Value

A user-defined object that qualifies or contains information about an asynchronous operation.

This property returns the object that is the last parameter of the method that initiates an asynchronous operation.

Notes to Implementers Implement this property to allow the caller of an asynchronous operation to obtain an application-defined object specified at the start of the operation.

Notes to Callers This object can be used to pass state information for the asynchronous operation to an AsyncCallback that you provide.

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.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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