Programming Microsoft® ASP.NET 3.5

The HttpResponse Object

In ASP.NET, the HTTP response information is encapsulated in the HttpResponse class. An instance of the class is created when the HTTP pipeline is set up to serve the request. The instance is then linked to the HttpContext object associated with the request and exposed via the Response property. The HttpResponse class defines methods and properties to manipulate the text that will be sent to the browser. Although user-defined ASP.NET code never needs to use the HttpResponse constructor, looking at it is still useful to get the gist of the class:

public HttpResponse(TextWriter writer);

As you can see, the constructor takes a writer object, which will then be used to accumulate the response text. All calls made to Response.Write ...