HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(Url);
ASCIIEncoding encoding = new ASCIIEncoding();
String postData = "data";
byte[] data = encoding.getByte(postData);
webRequest.Method = "POST";
webRequest.ContentType = "application/x-www-form-urlencoded";
webRequest.ContentLength = data.Length;
Stream reqStream = webRequest.GetRequestStream();
reqStream.Write(data, 0, data.Length);
HttpWebResponse response = (HttpWebResponse)webRequest.GetResponse();
string responseStr = new StreamReader(response.GetResponseStream()).ReadToEnd();
