ENVIAR ARQUIVO XML PARA WEBSERVICE.

using System;
using System.IO;
using System.Net;
using System.Text;

namespace Examples.System.Net
{
    public class WebRequestGetExample
    {
        public static void Main ()
        {
            // Get the object used to communicate with the server.
            FtpWebRequest request = (FtpWebRequest)WebRequest.Create([Ô]ftp://www.contoso.com/test.htm[Ô]);
            request.Method = WebRequestMethods.Ftp.UploadFile;

            // This example assumes the FTP site uses anonymous logon.
            request.Credentials = new NetworkCredential ([Ô]anonymous[Ô],[Ô]janeDoe@contoso.com[Ô]);

            // Copy the contents of the file to the request stream.
            StreamReader sourceStream = new StreamReader([Ô]testfile.txt[Ô]);
            byte [] fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());
            sourceStream.Close();
            request.ContentLength = fileContents.Length;

            Stream requestStream = request.GetRequestStream();
            requestStream.Write(fileContents, 0, fileContents.Length);
            requestStream.Close();

            FtpWebResponse response = (FtpWebResponse)request.GetResponse();

            Console.WriteLine([Ô]Upload File Complete, status {0}[Ô], response.StatusDescription);

            response.Close();
            }
        }
    }
}