private void UnsubscribeFromItem(T item)
{
bool wasLastInstanceOfItemRemovedFromCollection = this.ReferenceCountTracker.Remove(item);
if (!wasLastInstanceOfItemRemovedFromCollection || !this.IsMonitoringChildProperties)
{
return;
}
if (_propertyChangedSubscription != null)
{
_propertyChangedSubscription.UnsubscribeFromChanges((INotifyPropertyChanged)item, this);
}
else
{
this.Subscriptions[item].PropertyChanged -= OnAnyPropertyChangeInSubscriptionTree;
this.Subscriptions.Remove(item);
}
}
internal void UnsubscribeFromChanges(T subject)
{
if (EntireTreeSupportINotifyPropertyChanging)
{
if (_PropertyAccessTree == null)
{
return;
}
_PropertyAccessTree.UnsubscribeFromChanges(subject, this);
}
else
{
if (_Subscriptions == null)
{
return;
}
_Subscriptions[subject].PropertyChanged -= OnAnyPropertyChangeInSubscriptionTree;
_Subscriptions.Remove(subject);
}
}
