POST Requests on WP7

Question

I\'ve been dying for about 6 hours trying to figure out how to make a regular POST request in WP7 , I tried the answers of similar questions posted here and on many other places

Answer 1

To add post data just call BeginGetRequestStream method (also, BeginGetResponse move to GetRequestStreamCallback)

request.BeginGetRequestStream(new AsyncCallback(GetRequestStreamCallback), request);

void GetRequestStreamCallback(IAsyncResult asynchronousResult)
{
    HttpWebRequest webRequest = (HttpWebRequest)asynchronousResult.AsyncState;
    // End the stream request operation
    Stream postStream = webRequest.EndGetRequestStream(asynchronousResult);

    // Create the post data
    string postData = "post data";
    byte[] byteArray = Encoding.Unicode.GetBytes(postData);

    // Add the post data to the web request            
    postStream.Write(byteArray, 0, byteArray.Length);
    postStream.Close();

    // Start the web request
    webRequest.BeginGetResponse(new AsyncCallback(GetResponseCallback), webRequest);
}