Handling Http Request Responses from a listener webpage

When I serve up the page, it displays a webform. This is correct, as the http post I make to the web page must simulate a form being submitted.

In other words (laymens example), on the webpage, there is a form field called 'username'. If you type in a username there and click submit, the code behind would check if the username exists on the system and then return either "Exists" or "Invalid" to a label on the page.

What I am trying to do now is exactly the same, but via an Http Request from a different application. I would supply the username as the buffered stream via the HttpRequest and expect a response that says "Exists" or "Invalid".

Thanks

Sorry I misworded my first statement, I meant the fact that you see "ASP / HTML thinking you were seeing the actual source of the page and not the HTML result.

In your sample above you need to add a parameter and submit it via a post.

request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";

Also change your buffer to encode your parameter.

string data = "&username=fred";
request.ContentLength = data.Length;

http://msdn.microsoft.com/en-us/library/debx8sh9.aspx

Hi again JoltCola

Sorry - For readibility I left out those request variables / settings you mentioned above from my example, but they are indeed there. Those are not my problem. My problem is the receiving website. I don't know how to return a custom response to the request. I can submit my response successfully and even write that request data to a file on the receiving website side. Wheat I then need to do is return the response so that when I execute the code:

//Get Result
result = readStream.ReadToEnd();

I actually get the "Exists" or "Invalid" result.

Currently it returns the html for the the asp web form.

Thanks

Hi  perhaps a diagram will help illustrate a bit better.
Items 1 through 4 and 6 work fine. It s just the last item 5 that Im stuck on - where Website B needs to write some sort of result back to Website A. How do I create a custom response at this point and return it to website A, so that when I create the HttpResponse on Website A's side, I get the custom response I created on Website B's side.

Any ideas?


WEBSITE A                                                               WEBSITE B
                                                                             (http://localhost/TestListener.aspx)

(1)
Create HttpRequest to Website B

(2)
Write the Username to the Request
Stream                                                 ------------ >
                                          
                                                                (3) Website B receives the request and writes the
                                                                             Username and Request Headers to File
                                                                            (just to ensure we are receiving data)
                                          
                                                            (4) Website B takes the Username, calls a function and
                                                                            determines whether the Username is Invalid or Exists

                                                            (5) Website B creates a Response and writes it back to
                                          <-------------              the Request Stream of  Website A
(6) Website A receives HttpResponse