HttpResponse.BeginFlush Method (AsyncCallback, Object)

.NET Framework (current version)

Sends the currently buffered response to the client.

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

Syntax

Public Function BeginFlush (
	callback As AsyncCallback,
	state As Object
) As IAsyncResult

Parameters

callback: Type: System.AsyncCallback
The callback object.

state: Type: System.Object
The response state.

Return Value

Type: System.IAsyncResult

The asynchronous result object.

Exceptions

Exception	Condition
HttpException	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.

Version Information

.NET Framework
Available since 4.5