MyTimer example

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

namespace MSIExport
{
    class MyTimer : IDisposable
    {
        Stopwatch timer;
        Action<TimeSpan> value;
        public MyTimer(Action<TimeSpan> val)
        {
            value = val;
            timer = new Stopwatch();
            timer.Start();
        }
        public void Dispose()
        {
            timer.Stop();
            value(timer.Elapsed);
        }
    }
    public static void main(string[] args)
    {
        TimeSpan duration = new TimeSpan();
        using (MyTimer mt = new MyTimer(x => duration = x))
        {
            Thread.Sleep(5000);
        }
        Console.WriteLine("duration : {0}", duration);
    }
}