private static void OnLabelPathChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
{
LabelExtractor v = sender as LabelExtractor;
if (v != null && v.LabelPath != null && v.Items != null)
{
v.GenerateLabelList();
}
}
private static void OnItemsChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
{
LabelExtractor v = sender as LabelExtractor;
ItemCollection oldItems = args.OldValue as ItemCollection;
ItemCollection newItems = args.NewValue as ItemCollection;
if (oldItems != null)
{
((INotifyCollectionChanged)oldItems).CollectionChanged -= v.OnLabelsCollectionChanged;
}
if (v != null && v.Items != null)
{
((INotifyCollectionChanged)v.Items).CollectionChanged += v.OnLabelsCollectionChanged;
if (v.LabelPath != null)
{
v.GenerateLabelList();
}
}
}