Get or set a collection of header name/value pairs associated with the request in CSharp

using System;// w w w .ja  v a  2s .  com
using System.Net;
using System.Net.Sockets;
using System.Text;

public class Example
{
    public static void Main()
   {
            string uriString = "http://www.java2s.com";
      WebClient myWebClient = new WebClient();
      string postData = "data";
      myWebClient.Headers.Add("Content-Type","application/x-www-form-urlencoded");

      Console.WriteLine(myWebClient.Headers.ToString());
   }
}