public string Query(string queryString)        {            try            {                HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(AOPResource.LVSRequestURL);                request.Method = "POST";                UTF8Encoding encoding = new UTF8Encoding();                byte[] byteArray = encoding.GetBytes(queryString);                request.ContentType = "application/x-www-form-urlencoded";                request.ContentLength = byteArray.Length;                Stream requestStream = request.GetRequestStream();                requestStream.Write(byteArray, 0, byteArray.Length);                WebResponse response = request.GetResponse();                Stream responseStream = response.GetResponseStream();                StreamReader sr = new StreamReader(responseStream);                string result = sr.ReadToEnd();                requestStream.Close();                sr.Close();                responseStream.Close();                return result;            }            catch (WebException e)            {                using (WebResponse response = e.Response)                {                    HttpWebResponse httpResponse = (HttpWebResponse)response;                    Console.WriteLine("Error code: {0}", httpResponse.StatusCode);                    using (Stream data = response.GetResponseStream())                    using (var reader = new StreamReader(data))                    {                        string text = reader.ReadToEnd();                        throw new Exception(text);                    }                }            }        }