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SocketAsyncEventArgs.Completed Event

The event used to complete an asynchronous operation.

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

public event EventHandler<SocketAsyncEventArgs> Completed

The Completed event provides a way for client applications to complete an asynchronous socket operation. An event handler should be attached to the event within a SocketAsyncEventArgs instance when an asynchronous socket operation is initiated, otherwise the application will not be able to determine when the operation completes.

The completion callback delegates referenced by the Completed event contains program logic to finish processing the asynchronous socket operation for the client.

When the event is signaled, the application uses the SocketAsyncEventArgs object parameter to obtain the status of the completed asynchronous socket operation.

.NET Framework

Supported in: 4, 3.5 SP1, 3.0 SP1, 2.0 SP1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, 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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