C#EventDriven_Time

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace EventDriven1a
{

    public delegate void TickEvenetHanler(object sender, EventArgs e);
    class Time
    {
        public event TickEvenetHanler Tick;

        public void Start()
        {
            while (true){

                System.Threading.Thread.Sleep(1000);

                if (Tick != null) {
                    Tick(this, EventArgs.Empty);
                }

            }
        }
    }
}