public void SendAsync(string method, Uri uri, HttpContent postData, Action<HttpResponseMessage> httpClientCallback)
 {
     var httpRequest = ConfigureWebRequest(uri, method);
     var rawRequestData = new AsyncRequest { PostData = postData, HttpClientCallback = httpClientCallback, WebRequest = httpRequest };
     BeginRequest(method, httpRequest, rawRequestData);
 }
 public HttpResponseMessage()
 {
     Content = new HttpContent();
     Properties = new List<object>();
 }
 public HttpResponseMessage Send(string method, Uri uri, HttpContent postData)
 {
     throw new NotImplementedException("Not implemented in Silverlight, use Async methods.");
 }