download data from Url in c#

string yahooURL = @"http://download.finance.yahoo.com/d/quotes.csv?s=" + Cmbsym.Text + "&f=sl1d1t1c1hgvbap2" ;

            string GetData = GetDataFromURL(yahooURL);

public static string GetDataFromURL( string URL)

        {

            string Content = "" ;

            int Failure = 0;

            HttpWebRequest WebReq;

            HttpWebResponse WebResp = null ;

            StreamReader Strm = null ;

        TryAgain:

            try

            {

                if (Failure == 3)

                    return "" ;

                WebReq = ( HttpWebRequest)WebRequest .Create(URL);

                WebReq.Timeout = 50000;

                WebResp = ( HttpWebResponse)WebReq.GetResponse();

                Strm = new StreamReader (WebResp.GetResponseStream());

                Content = Strm.ReadToEnd();

                Strm.Close();

                Strm.Dispose();

                WebResp.Close();

            }

            catch (Exception ex)

            {

                if (ex.Message.Contains("(404) Not Found" ))

                { }

                if (Strm != null )

                {

                    Strm.Close();

                    Strm.Dispose();

                }

                if (WebResp != null )

                {

                    WebResp.Close();

                }

                Failure++;

                goto TryAgain;

            }

            return Content;

        }