c# 上传FTP文件

        /// <summary>
        /// 向FTP上传文件
        /// </summary>
        /// <param name="FtpName">账户</param>
        /// <param name="FtpPassword">密码</param>
        /// <param name="FtpUrl">地址</param>
        /// <param name="root">XML对象</param>
        private static void UpLoadFile(string FtpName, string FtpPassword, Uri FtpUrl, XElement root)
        {

            FtpWebRequest request = (FtpWebRequest)WebRequest.Create(FtpUrl);
            request.Credentials = new NetworkCredential(FtpName, FtpPassword);
            request.KeepAlive = false;
            request.Method = WebRequestMethods.Ftp.UploadFile;

            //创建一条内存流
            MemoryStream fileStream = new MemoryStream();
            StreamWriter sw = new StreamWriter(fileStream);
            root.Save(sw);
            sw.Write(fileStream);

            try
            {
                var buffer = new byte[20480];
                int conlen = fileStream.Read(buffer, 0, 20480);
                Stream stream = request.GetRequestStream();
                foreach (var item in fileStream.ToArray())
                {
                    stream.WriteByte(item);
                }
                stream.Close();
                fileStream.Close();
            }
            catch (Exception e)
            {
                throw;
            }

        }