Using the ExceptionDispatchInfo class

Program.cs

using System;
using System.Runtime.ExceptionServices;

namespace implement_exception_handling
{
    class Program
    {
        static void Main(string[] args)
        {
            var notSoGreatPhrase = "That is a not-so-great phrase";

            ExceptionDispatchInfo exceptionDispatchInfo = null;

            try
            {
                var phraseToInt = int.Parse(notSoGreatPhrase);
            }
            catch (FormatException exception)
            {
                exceptionDispatchInfo = ExceptionDispatchInfo.Capture(exception);
            }
            
            // "?" is a C# 6.0 feature. It allows you to call Functions on objects without the fear of a NulLReferenceException,
            // since it wraps the null checking before executing the method. 
            exceptionDispatchInfo?.Throw();

            Console.ReadKey();
        }
    }
}