static void Main(string[] args)
{
ListWithNotifications list = new ListWithNotifications();
ListListenerDisplayChanges displayListener = new ListListenerDisplayChanges();
displayListener.Subscribe(list);
ListListenerSaveToFile logListener = new ListListenerSaveToFile("list.txt");
logListener.Subscribe(list);
list.Add(4);
list.Add(23);
list.Add(44);
list[1] = 65;
Thread.Sleep(1000);
list.Clear();
displayListener.Unsubscribe(list);
logListener.Unsubscribe(list);
list.Add(17);
Console.ReadKey();
}
public void Unsubscribe(ListWithNotifications list)
{
list.ListModified -= new ListWithNotifications.ListModificationHandler(SaveToFile);
}
public void Unsubscribe(ListWithNotifications list)
{
list.ListModified -= new ListWithNotifications.ListModificationHandler(DisplayOnConsole);
}
