C# - Simple Web-Request with Web-Response

//Create a Web-Request to an URL
HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create("http://www.microsoft.com/en/us/default.aspx");

//Defined poperties for the Web-Request
httpWebRequest.Method = "POST";
httpWebRequest.MediaType = "HTTP/1.1";
httpWebRequest.ContentType = "text/xml";
httpWebRequest.UserAgent = "Example Client";

//Defined data for the Web-Request
byte[] byteArrayData = Encoding.ASCII.GetBytes("A string you would like to send");
httpWebRequest.ContentLength = byteArrayData.Length;

//Attach data to the Web-Request
Stream dataStream = httpWebRequest.GetRequestStream();
dataStream.Write(byteArrayData, 0, byteArrayData.Length);
dataStream.Close();

//Send Web-Request and receive a Web-Response
HttpWebResponse httpWebesponse = (HttpWebResponse)httpWebRequest.GetResponse();

//Translate data from the Web-Response to a string
dataStream = httpWebesponse.GetResponseStream();
StreamReader streamreader = new StreamReader(dataStream, Encoding.UTF8);
string response = streamreader.ReadToEnd();
streamreader.Close();