using System;

namespace CustomEventConsole
{
	class Class1
	{
		static void Main()
		{
			InfoProvider ip = new InfoProvider();
			ip.InfoEvent += GotInfo;
			ip.Start();
		}

		public static void GotInfo(object sender, InfoEventArgs e)
		{
			Console.WriteLine(e.Date.ToString());
		}
	}

	public class InfoEventArgs : EventArgs
	{
		private DateTime date;
		public InfoEventArgs(DateTime date)
		{
			this.date = date;
		}

		public DateTime Date
		{
			get { return date; }
		}
	}

	public class InfoProvider
	{
		public event EventHandler<InfoEventArgs> InfoEvent;
		//Note: the generic System.EventHandler is defined like this:
		// public delegate void EventHandler<TEventArgs>
		// (object sender, TEventArgs e) where TEventArgs : EventArgs;

		public void Start()
		{
			DateTime start;
			TimeSpan span;
			for (int i = 0; i < 5; i++)
			{
				start = DateTime.Now;
				do
				{
					span = DateTime.Now - start;
				}
				while (span.Seconds < 1);

				DateTime date = DateTime.Now;
				InfoEventArgs args = new InfoEventArgs(date);
				HaveInfo(args);
			}
		}

		protected void HaveInfo(InfoEventArgs args)
		{
			if (InfoEvent != null)
				InfoEvent(this, args);
			//If you are using threads, search the .NET docs for
			//EventHandler<TEventArgs> delegate
			//to see how to avoid a possible thread safety issue.
		}
	}
}