using System;

using System.Net;

using  System.Collections.Specialized       ;       

​

using System.Collections;

using System.Xml.Linq;

using System.Xml;

using System.IO;

public class Program

{

    public static void Main()

    {

    WebClient client = new WebClient();

    string destUri = "http://www.webservicex.net/geoipservice.asmx/GetGeoIP";

    client.Headers[HttpRequestHeader.ContentType] = "application/x-www-form-urlencoded";

    NameValueCollection reqparm = new NameValueCollection();

    reqparm.Add("IPAddress", "212.199.130.50");

    var response = client.UploadValues(destUri,"POST", reqparm);

​

    var x= System.Text.Encoding.UTF8.GetString(response);

    var xdoc = XDocument.Load(new StringReader(x));

     XNamespace ns = xdoc.Root.GetDefaultNamespace();

    xdoc.Root.Element(ns+"CountryName").Value.Dump();

    }

}