using System;

public class Program

{

    public enum MyEnum

    {

        North  = 0, //old

        Top    = 0, //new

        South  = 1, //old

        Bottom = 1  //new

    }

    public static void Main()

    {

        // Parse "old" from XML config (simulated)

        MyEnum test = (MyEnum)Enum.Parse(typeof(MyEnum),"North");

        //          = MyEnum.North

        switch(test)

        {

            case MyEnum.Top:

                Console.WriteLine("NORTH");

                break;

            case MyEnum.Bottom:

                Console.WriteLine("SOUTH");

                break;

            default:

                Console.WriteLine("Unsupported!");

                break;

        }

    }

}