C# Parameterized Events via Interfaces example

Readme.md

I took the excellent article The Simplest C# Events Example Imaginable by Todd Wilder, and modified it to work entirely with interfaces using the technique suggested here by Stack Overflow user DELUXEnized, which was to use the Action type. This should work on .NET 3.5 and higher. Paste the C# code into a new console app overwriting the default code in Program.cs that is inside the namespace.

Thanks to all who provided these base suggestions.

Program.cs

    // INTERFACES

    public interface ITicker
    {
        event Action<ITicker,ITimeOfTick> Tick;
    }

    public interface ITimeOfTick
    {
        DateTime Time { get; set; }
    }

    // CONCRETE CLASSES

    public class TimeOfTick : EventArgs, ITimeOfTick
    {
        private DateTime TimeNow;
        public DateTime Time
        {
            set
            {
                TimeNow = value;
            }
            get
            {
                return this.TimeNow;
            }
        }
    }

    public class Metronome : ITicker
    {
        public event Action<ITicker, ITimeOfTick> Tick;
        
        public void Start()
        {
            while (true)
            {
                System.Threading.Thread.Sleep(3000);
                if (Tick != null)
                {
                    ITimeOfTick TOT = new TimeOfTick();
                    TOT.Time = DateTime.Now;
                    Tick(this, TOT);
                }
            }
        }
    }

    public class Listener
    {
        public void Subscribe(ITicker m)
        {
            m.Tick += HeardIt;
        }
        private void HeardIt(ITicker m, ITimeOfTick e)
        {
            System.Console.WriteLine("HEARD IT AT {0}", e.Time);
        }

    }

    // PROGRAM

    class Test
    {
        static void Main()
        {
            Metronome m = new Metronome();
            Listener l = new Listener();
            l.Subscribe(m);
            m.Start();
        }
    }