public bool UnRegisterSubject(INotificationSubject unRegisterFrom)
{
if (unRegisterFrom.UnregisterObserver(this))
{
if (subjects.TryRemove(unRegisterFrom.GetGuid(), out INotificationSubject removed))
{
return(removed.GetGuid().Equals(unRegisterFrom.GetGuid()));
}
}
return(false);
}
public bool RegisterSubject(INotificationSubject registerTo)
{
if (registerTo.RegisterObserver(this))
{
if (subjects.TryAdd(registerTo.GetGuid(), registerTo))
{
return(true);
}
}
return(false);
}