public static void Main(string[] args)
{
var broadcaster = new EventBroadcaster();
var listners = new List <EventListner>();
for (int i = 1; i < 10; i++)
{
var listner = new EventListner(i.ToString(CultureInfo.InvariantCulture));
listner.ListenTo(broadcaster);
listners.Add(listner);
}
broadcaster.DoLongRunningOperationAndRaiseFinishedEvent();
Console.WriteLine("Waiting for operation to complete");
Console.ReadLine();
}