Handle httpWebRequest response - windows-phone-8

Question

I've never been good in httpWebRequest. Always preferred WebClient but... desperate time, desperate measures.
private static void GetResponseCallback(IAsyncResult asynchronousResult)
{
try
{
HttpWebRequest request = (HttpWebRequest)asynchronousResult.AsyncState;
// End the operation
HttpWebResponse response = (HttpWebResponse)request.EndGetResponse(asynchronousResult);
Stream streamResponse = response.GetResponseStream();
StreamReader streamRead = new StreamReader(streamResponse);
string responseString = streamRead.ReadToEnd();
// Close the stream object
streamResponse.Close();
streamRead.Close();
// Release the HttpWebResponse
response.Close();
//allDone.Set();
}
catch (WebException exception)
{
}
}
I can see (when I put breakpoint next) that responseString is beautiul JSON but I can't print it out (MessageBox etc) as my app will break.
Could you tell me how to handle that?
Cheers

Answer 1

Added magic
Dispatcher.BeginInvoke(() => { MessageBox.Show("OK"); });
And worked like a charm :)

Answer 2

Try this one
using System.Net;
public void sendRequest()
{
WebRequest webRequest;
webRequest = WebRequest.Create(XXXXXXXXXX);
webRequest.Method = "POST";
webRequest.ContentType = "application/x-www-form-urlencoded";
webRequest.BeginGetRequestStream(newAsyncCallback(GetRequestStreamCallback), webRequest);
}
public void GetRequestStreamCallback(IAsyncResult asynchronousResult)
{
webRequest = (HttpWebRequest)asynchronousResult.AsyncState;
Stream postStream = webRequest.EndGetRequestStream(asynchronousResult);
string postData = "Test";
byte[] byteArray = Encoding.UTF8.GetBytes(postData);
postStream.Write(byteArray, 0, byteArray.Length);
postStream.Close();
webRequest.BeginGetResponse(new AsyncCallback(GetResponseCallback), webRequest);
}
public void GetResponseCallback(IAsyncResult asynchronousResult)
{
try
{
HttpWebRequest webRequest = (HttpWebRequest)asynchronousResult.AsyncState;
HttpWebResponse response;
response = (HttpWebResponse)webRequest.EndGetResponse(asynchronousResult);
Stream streamResponse = response.GetResponseStream();
StreamReader streamReader = new StreamReader(streamResponse);
var Response = streamReader.ReadToEnd();
streamResponse.Close();
streamReader.Close();
response.Close();
if (Response == "")
{
//show some error msg to the user
}
else
{
//Your response will be available in "Response"
}
}
catch (WebException)
{
//error
}
}
here the XXXXXXXX means your url with data which is sent to the server.