private bool RemoveFromGroupDirectly(CollectionViewGroupInternal group, object item)
{
int index = group.Remove(item, true);
if (index < 0)
{
return(true);
}
this.OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Remove, item, index));
return(false);
}
private void RemoveEmptyGroup(CollectionViewGroupInternal group)
{
CollectionViewGroupInternal parent = group.Parent;
if (parent == null)
{
return;
}
GroupDescription groupBy = parent.GroupBy;
if (parent.ProtectedItems.IndexOf((object)group) < groupBy.GroupNames.Count)
{
return;
}
parent.Remove((object)group, false);
}