Accessing Response Packet from within C# code, using an existing instance of Web Browser

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C#

.NET

HTTP

I am writing C# Coded UI Tests in Visual Studio 2010. To enhance the testing, I need to access all the responses coming back from the server. For instance, I am testing the Add New Member use case, if user’s attempt to add a new member fails, and the UI doesn't show neither the success or failure massage, I want to be able to get more detail from the http response and show the appropriate respond to the tester.

My code first open an instance of

SHDocVw.ShellWindows allBrowsers = new SHDocVw.ShellWindows();

                if (allBrowsers.Count > 1)
                {

                    MessageBox.Show("Number active browsers = " + allBrowsers.Count + "." + " Please close all windows and try again...");

                    throw new Exception("Multiple IE Instances not allow ");

                }

                p = Process.Start("iexplore.exe", "http://bing/");

                BrowserWindow win = new BrowserWindow();

                current.SearchProperties[BrowserWindow.PropertyNames.Name] = "Bing";

               if (p == null) throw new Exception("Could not launch IE");

Now, I need to somehow capture all the responses that server sends back to requests going out from the instance of win object?

I am not sure if there is any way to do with HttpContext or such.

Thanks

Ali