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PublisherChapter 17. The HttpResponse Class
Just as the HttpRequest
class covered in Chapter 16 is the replacement for
the classic ASP intrinsic Request object, the
HttpResponse class is ASP.NET's
replacement for ASP's intrinsic Response object.
Like the HttpRequest class, the
HttpResponse class instance for a given ASP.NET
page is exposed as a property (the Response property) of the
Page class (from which all pages are derived), so
code for the HttpResponse class is the same as in
classic ASP. For those of you with classic ASP applications that
migrate to ASP.NET, this class will save you a lot of work.The HttpResponse class controls a variety of
factors related to ASP.NET's response to a given
HTTP request and provides access to the output stream of the
response, allowing the writing of text or binary content to the
client browser programmatically. The HttpResponse
class provides access to this functionality through its properties,
collections, and methods, which are shown in Table 17-1.The control over page output that the HttpResponse
class provides includes the character set used and encoding of the
response, as well as whether the response is buffered and sent all at
once (the default) or sent as output is processed. Methods of the
HttpResponse class provide granular control over
output sent to the browser, including sending binary or text content
and sending HTTP headers and cookies to the client.Note that several properties and methods exposed by the Response
object in classic ASP have been deprecated in ASP.NET in favor of new
properties and methods exposed by the HttpResponse
class (or, in some cases, by other functionality available in
ASP.NET). For properties and methods that have been deprecated and/or
replaced by new members in ASP.NET, that fact will be notated in the
"Notes" section of the reference
for that property or method.
