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HttpResponse.BeginFlush Method

.NET Framework 4.5

Sends the currently buffered response to the client.

Namespace:  System.Web
Assembly:  System.Web (in System.Web.dll)
public IAsyncResult BeginFlush(
	AsyncCallback callback,
	Object state


Type: System.AsyncCallback

The callback object.

Type: System.Object

The response state.

Return Value

Type: System.IAsyncResult
The asynchronous result object.

The response is already completed.

If the underlying HttpWorkerRequest object supports asynchronous flush operations and this method is called from an asynchronous module event or from an asynchronous handler, the flush operation is performed asynchronously. Otherwise, the flush operation is performed synchronously. Asynchronous flush is supported for IIS 6.0 and later.

.NET Framework

Supported in: 4.5.1, 4.5

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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