System.Net.WebResponse.Close C# (CSharp) Метод

        public virtual void Close() { }
        public void Dispose() { }

        private Image DownloadImage(string pURL)
        {
            Console.WriteLine("Trying to get image : " + pURL);
            Image _tmpImage = null;

            try
            {
                System.Net.HttpWebRequest _HttpWebRequest = (System.Net.HttpWebRequest)System.Net.HttpWebRequest.Create(pURL);
                _HttpWebRequest.AllowWriteStreamBuffering = true;
                _HttpWebRequest.UserAgent = "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)";
                _HttpWebRequest.Referer   = "http://www.google.com/";
                _HttpWebRequest.Timeout   = 20000;
                System.Net.WebResponse _WebResponse = _HttpWebRequest.GetResponse();
                System.IO.Stream       _WebStream   = _WebResponse.GetResponseStream();
                _tmpImage = Image.FromStream(_WebStream);
                _WebResponse.Close();
                _WebResponse.Close();
            }
            catch (Exception _Exception)
            {
                Console.WriteLine("Exception caught in process: {0}", _Exception.ToString());
                return(null);
            }
            return(_tmpImage);
        }