How can I catch a 404?

Question

I have the following code:

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); request.Method = "HEAD"; request.Credentials = MyCredentialCache;  try {     request.GetResponse(); } catch { } 

How can I catch a specific 404 error? The WebExceptionStatus.ProtocolError can only detect that an error occurred, but not give the exact code of the error.

For example:

catch (WebException ex) {     if (ex.Status != WebExceptionStatus.ProtocolError)     {         throw ex;     } } 

Is just not useful enough... the protocol exception could be 401, 503, 403, anything really.

Answer 1

try {     var request = WebRequest.Create(uri);     using (var response = request.GetResponse())     {         using (var responseStream = response.GetResponseStream())         {             // Process the stream         }     } } catch (WebException ex) {     if (ex.Status == WebExceptionStatus.ProtocolError &&         ex.Response != null)     {         var resp = (HttpWebResponse) ex.Response;         if (resp.StatusCode == HttpStatusCode.NotFound)         {             // Do something         }         else         {             // Do something else         }     }     else     {         // Do something else     } }