Csharp/CSharp Tutorial/Network/Network Exception

Handle network exceptions

<source lang="csharp">using System; using System.Net; using System.IO;

class MainClass {

 public static void Main() { 
   int ch; 

   try { 

     HttpWebRequest req = (HttpWebRequest) WebRequest.Create("http://www.nfex.ru"); 

     HttpWebResponse resp = (HttpWebResponse) req.GetResponse(); 

     Stream istrm = resp.GetResponseStream(); 

     for(int i=1; ; i++) { 
       ch =  istrm.ReadByte(); 
       if(ch == -1) 
          break; 
       Console.Write((char) ch); 
     } 

     resp.Close(); 

   } catch(WebException exc) { 
     Console.WriteLine("Network Error: " + exc.Message +  
                       "\nStatus code: " + exc.Status); 
   } catch(ProtocolViolationException exc) { 
     Console.WriteLine("Protocol Error: " + exc.Message); 
   } catch(UriFormatException exc) { 
     Console.WriteLine("URI Format Error: " + exc.Message); 
   } catch(NotSupportedException exc) { 
     Console.WriteLine("Unknown Protocol: " + exc.Message); 
   } catch(IOException exc) { 
     Console.WriteLine("I/O Error: " + exc.Message); 
   } catch(System.Security.SecurityException exc) { 
     Console.WriteLine("Security Exception: " + exc.Message); 
   } catch(InvalidOperationException exc) { 
     Console.WriteLine("Invalid Operation: " + exc.Message); 
   } 
 } 

}</source>