/// <summary>
/// Updates a filter.
/// </summary>
protected virtual void UpdateFilterInternal(out bool shouldRaiseEvents)
{
FilterDelegate <T> currentFilter = _filter;
if (currentFilter != null)
{
_filterCollection.Clear();
for (int index = 0; index < Items.Count; index++)
{
T item = Items[index];
if (currentFilter(item))
{
_filterCollection.Add(index, item);
}
}
}
EventsTracker.AddEvent(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
shouldRaiseEvents = true;
}
private void UpdateFilterInternal(OrderedListInternal <int, T> filterCollection, FilterDelegate <T> filter, NotificationType notificationType)
{
var currentFilter = filter;
filterCollection.Clear();
var items = GetItems();
if (currentFilter != null)
{
for (var index = 0; index < items.Count; index++)
{
var item = items[index];
if (currentFilter(item))
{
filterCollection.Add(index, item);
}
}
}
OnCollectionChanged(Empty.ResetEventArgs, notificationType);
}
