Reading WebResponse in C#

Namespace:
 
using System.Net;

Code:

         try
        {
            String Result, URL;
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(URL);
            ICredentials credentials = new NetworkCredential("username", "Password", "Domain");
            IWebProxy webProxy = new WebProxy("proxy URL", 8080);
            webProxy.Credentials = credentials;
            request.Proxy = webProxy;

            WebResponse myResponse = request.GetResponse();
            StreamReader sr = new StreamReader(myResponse.GetResponseStream(), System.Text.Encoding.UTF8);
            Result = sr.ReadToEnd();
            sr.Close();
            myResponse.Close();
        }
        catch {    }