Post Data using HttpWebRequest

public static string PostData(string url, string data, string contentType)
{
string result = "";
HttpWebRequest objRequest = (HttpWebRequest)WebRequest.Create(url);
objRequest.Method = "POST";
objRequest.ContentLength = data.Length;
objRequest.ContentType = contentType;
using (StreamWriter myWriter = new StreamWriter(objRequest.GetRequestStream()))
{
myWriter.Write(data);
}
HttpWebResponse objResponse = (HttpWebResponse)objRequest.GetResponse();
using (StreamReader sr = new StreamReader(objResponse.GetResponseStream()))
{
result = sr.ReadToEnd();
}
return result;
}
public static string PostData(string url, string data)
{
return PostData(url, data, "application/x-www-form-urlencoded");
}