using System;

public class Program

{

    public enum Foo{

        OptionA,

        OptionB

    }

    public static void Main()

    {

        Foo example = Foo.OptionB;

        string result = "";

        switch (example){

            case Foo.OptionA:

                result = "A was done";

                break;

            default:

            case Foo.OptionB:

                result = "B was done";

                break;

        }

        Console.WriteLine(result);

    }

}