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  1. using System;
  2.  
  3. namespace Test
  4. {
  5.     public class HttpException : Exception
  6.     {
  7.         public HttpException(int status)
  8.         {
  9.             StatusCode = status;
  10.         }
  11.  
  12.         public int StatusCode { get; set; }
  13.     }
  14.  
  15.     class Program
  16.     {
  17.         static void TestCatch(int status)
  18.         {
  19.             try
  20.             {
  21.                 throw new HttpException(status);
  22.             }
  23.             catch (HttpException ex) when (ex.StatusCode == 404)
  24.             {
  25.                 Console.WriteLine("Not Found!");
  26.             }
  27.             catch (HttpException ex) when (ex.StatusCode >= 500 && ex.StatusCode < 600)
  28.             {
  29.                 Console.WriteLine("Server Error");
  30.             }
  31.             catch (HttpException ex)
  32.             {
  33.                 Console.WriteLine("HTTP Error {0}", ex.StatusCode);
  34.             } 
  35.         }
  36.         static void Main(string[] args)
  37.         {
  38.             TestCatch(404);
  39.             TestCatch(501);
  40.             TestCatch(101);
  41.         }
  42.     }
  43. }
  44.  
Success #stdin #stdout 0.02s 15904KB
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stdin
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Standard input is empty
stdout
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Not Found!
Server Error
HTTP Error 101
https://ideone.com/zXstg3
language:
C# (gmcs 5.20.1)
created:
4 years ago
visibility:
public

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