private void handleSourceCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
HandledEventSender = sender;
HandledEventArgs = e;
if (!Utils.handledAfterActivationInCountOrIndexerPropertyChangedHandlers(e.Action, _countPropertyChangedEventRaised, _indexerPropertyChangedEventRaised))
{
_indexerPropertyChangedEventRaised = false;
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
//if (e.NewItems.Count > 1) throw new ObservableComputationsException("Adding of multiple items is not supported");
int newStartingIndex = e.NewStartingIndex;
InsertItem(newStartingIndex, _sourceAsList[newStartingIndex]);
break;
case NotifyCollectionChangedAction.Remove:
// (e.OldItems.Count > 1) throw new ObservableComputationsException("Removing of multiple items is not supported");
RemoveItem(e.OldStartingIndex);
break;
case NotifyCollectionChangedAction.Replace:
//if (e.NewItems.Count > 1) throw new ObservableComputationsException("Replacing of multiple items is not supported");
int newStartingIndex2 = e.NewStartingIndex;
SetItem(newStartingIndex2, _sourceAsList[newStartingIndex2]);
break;
case NotifyCollectionChangedAction.Move:
int oldStartingIndex1 = e.OldStartingIndex;
int newStartingIndex1 = e.NewStartingIndex;
if (oldStartingIndex1 == newStartingIndex1)
{
return;
}
MoveItem(oldStartingIndex1, newStartingIndex1);
break;
case NotifyCollectionChangedAction.Reset:
reset();
break;
}
}
}