internal static void Main(string[] args)
{
Observer observer = new Observer();
List <BaseObject> objects = new List <BaseObject>();
DerivedObject1 obj1 = new DerivedObject1();
objects.Add(obj1);
obj1.RegisterObserver(observer);
DerivedObject2 obj2 = new DerivedObject2();
objects.Add(obj2);
obj2.RegisterObserver(observer);
var baseObjectObserver = new ObserverOfBase();
obj1.RegisterObserver(baseObjectObserver);
obj2.RegisterObserver(baseObjectObserver);
foreach (var bo in objects)
{
bo.FireObjectChanged();
}
}
public void ObjectChanged(DerivedObject2 obj)
{
Console.WriteLine("DerivedObject2 Observer");
}