static void CheckStatus(object state)
{
TimerExampleState s = (TimerExampleState)state;
s.counter++;
Console.WriteLine("{0} Checking Status {1}.",
DateTime.Now.TimeOfDay, s.counter);
}
public static void Main()
{
TimerExampleState s = new TimerExampleState();
Timer timer = new Timer(CheckStatus, s, 1000, 500);
Console.ReadKey();
timer.Dispose();
Console.WriteLine("counter=" + s.counter);
Console.ReadKey();
}