HttpWebRequest Post method error in Windows phone 8 - windows-phone-8

Question

HttpWebRequest in Windows phone 8
I am developing a windows phone 8 app using c#/xaml. I am facing some issues with httpwebrequest class. I want to download data from server using post method.But httpwebrequest is not working as expected. It is returning error (The remote server returned an error: NotFound) when i try to call webservices subsequently. What could be the reason?. Please help...Following is my code.
string response = "";
httpwebrequest = WebRequest.Create(new Uri(serviceurl)) as HttpWebRequest;
httpwebrequest.Method = "POST";
httpwebrequest.ContentType = "application/json";
byte[] data = Serialization.SerializeData(request);
using (var requestStream = await Task<Stream>.Factory.FromAsync(httpwebrequest.BeginGetRequestStream, httpwebrequest.EndGetRequestStream, null))
{
await requestStream.WriteAsync(data, 0, data.Length);
}
response = await httpRequest(httpwebrequest);
var result = Serialization.Deserialize<T>(response);
return result;
}
public async Task<string> httpRequest(HttpWebRequest request)
{
try
{
string received;
using (var response = (HttpWebResponse)(await Task<WebResponse>.Factory.FromAsync(request.BeginGetResponse, request.EndGetResponse, null)))
{
using (var responseStream = response.GetResponseStream())
{
using (var sr = new StreamReader(responseStream))
{
received = await sr.ReadToEndAsync();
}
}
response.Close();
}
return received;
}
catch(Exception ex)
{
return "";
}
}

Answer 1

Have you checked the inner exception? Because i had a similar problem an when i checked the inner exception i found that i got another error from the server. Check also the real http status code into the response header.