Ordered Catch

try this

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace dotnetperl
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                int x = 0;
                int y = 5 / x;
            }
            catch (ArithmeticException ex)
            { //derived
                Console.WriteLine(ex.Message);
            }
            catch (Exception ex)
            { //base
                Console.WriteLine(ex.Message);
            }
            Console.ReadLine();
        }
    }
}