public ProxyValueCollection(ObservableCollection <T> realCollection)
: base(Enumerable.Range(0, realCollection.Count).Select(i => new ProxiedValue <T>(i, realCollection)))
{
m_realCollection = realCollection;
m_realCollectionCollectionChangedEvent = new WeakEvent <NotifyCollectionChangedEventHandler>(m_realCollection, nameof(m_realCollection.CollectionChanged));
m_realCollectionCollectionChangedEvent += OnRealCollectionOnCollectionChanged;
CollectionChanged += OnBoxedValueCollectionChanged;
}
private void OnBoxedValueCollectionChanged(object sender, NotifyCollectionChangedEventArgs args)
{
switch (args.Action)
{
case NotifyCollectionChangedAction.Remove:
m_realCollectionCollectionChangedEvent -= OnRealCollectionOnCollectionChanged;
m_realCollection.RemoveAt(args.OldStartingIndex);
m_realCollectionCollectionChangedEvent += OnRealCollectionOnCollectionChanged;
break;
case NotifyCollectionChangedAction.Replace:
break;
default:
case NotifyCollectionChangedAction.Add:
throw new NotImplementedException();
case NotifyCollectionChangedAction.Move:
case NotifyCollectionChangedAction.Reset:
throw new ArgumentOutOfRangeException();
}
}