Http Request POST

httpRequestPost.cs

string getUrl = "http://whatevatreva.kwom";
string postData = String.Format("organization_id={0}&subscriber_firstname={1}", "313", "Treva");

HttpWebRequest getRequest = (HttpWebRequest)WebRequest.Create(getUrl);
getRequest.Method = WebRequestMethods.Http.Post;
getRequest.ContentType = "application/x-www-form-urlencoded";
byte[] byteArray = Encoding.ASCII.GetBytes(postData);
getRequest.ContentLength = byteArray.Length;
Stream newStream = getRequest.GetRequestStream(); 
newStream.Write(byteArray, 0, byteArray.Length); 
newStream.Close();

string result = string.Empty;
HttpWebResponse getResponse = (HttpWebResponse)getRequest.GetResponse();
using (StreamReader sr = new StreamReader(getResponse.GetResponseStream()))
{
    result = sr.ReadToEnd();
}

Response.Write(result);