using System;

public class Program

{

    public static void Main()

    {

        try{

            throw new MyException(1,0);

        }

        catch(MyException me)

        {

            Console.WriteLine("Caught a MyException with {0} and {1}", me.Numerator, me.Denominator);

        }

    }

}

​

public class MyException : ApplicationException

{

     public int Numerator {get; init;}

     public int Denominator {get; init;}

     public MyException( int numerator, int denominator )

     {

         Numerator = numerator;

         Denominator = denominator;

     }

}