HttpResponse.Clear Method ()
Clears all content output from the buffer stream.
Assembly: System.Web (in System.Web.dll)
Themethod does not clear header information.
The following example sets the ContentType property for the response to image/jpeg, calls the method to remove other content that might be attached to the response, and then sets the BufferOutput property to true so that the complete page will be processed before any content is sent to the requesting client.
For a complete example, see the HttpResponse class.
Available since 1.1