internal IEnumerable GetChildren(object item)
{
if (_childrenPropertyReader == null)
{
_childrenPropertyReader = new ItemsControlItemPropertyReader <IEnumerable>(this, VirtualTreeViewItem.ItemsSourceProperty, allowSourceProperties: OptimizeItemBindings);
}
return(_childrenPropertyReader.Get(item));
}
internal bool IsExpanded(object item)
{
if (_isExpandedPropertyReader == null)
{
_isExpandedPropertyReader = new ItemsControlItemPropertyReader <bool>(this, VirtualTreeViewItem.IsExpandedProperty, allowSourceProperties: OptimizeItemBindings);
}
return(_isExpandedPropertyReader.Get(item));
}