public void RemoveNotifier(IObserverNotify observerNotify) { if (this.observerNotifies.Contains(observerNotify)) { this.observerNotifies.Remove(observerNotify); } }
public void AddNotifier(IObserverNotify observerNotify) { if (!this.observerNotifies.Contains(observerNotify)) { this.observerNotifies.Add(observerNotify); } }