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IAsyncResult.CompletedSynchronously Property

Gets a value that indicates whether the asynchronous operation completed synchronously.

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

'Declaration
ReadOnly Property CompletedSynchronously As Boolean

Property Value

Type: System.Boolean
true if the asynchronous operation completed synchronously; otherwise, false.

If the synchronous completion of the call is detected in the AsyncCallback delegate, it is probable that the thread that initiated the asynchronous operation is the current thread.

Notes to Implementers

Most implementers of the IAsyncResult interface will not use this property and should return false.

Notes to Callers

Use this property to determine if the asynchronous operation completed synchronously. For example, this property can return true for an asynchronous I/O operation if the I/O request was small.

.NET Framework

Supported in: 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

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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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