Development C# Tutorial

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Reflection;
using System.Runtime;
using System.Runtime.CompilerServices;
using System.Security;
using System.Text;
using System.Threading;
public class MainClass
{
    public static void Main()
    {
        using (Timer t = new Timer(TimerWorker, "Testing", 0, 50))
        {
            Thread.Sleep(500);
            Console.WriteLine("Shutting down timer...");
        }
    }
    private static void TimerWorker(object state)
    {
        Console.WriteLine("Timer event! {0}", state);
    }
}
Timer event! Testing
Timer event! Testing
Shutting down timer...
Timer event! Testing