2 writes to _expander
PresentationFramework (2)
System\Windows\Controls\GroupItem.cs (2)
48_expander = Helper.FindTemplatedDescendant<Expander>(this, this); 93_expander = null;
17 references to _expander
PresentationFramework (17)
System\Windows\Controls\GroupItem.cs (17)
53if (_expander != null) 58Helper.SetItemValuesOnContainer(itemsControl, _expander, itemsControl.ItemContainerGenerator.ItemFromContainer(this)); 61_expander.Expanded += new RoutedEventHandler(OnExpanded); 68if (groupItem != null && groupItem._expander != null && groupItem._expander.IsExpanded) 92_expander?.Expanded -= new RoutedEventHandler(OnExpanded); 214if (_expander != null) 216Helper.SetItemValuesOnContainer(parentItemsControl, _expander, item); 233if (_expander != null) 235Helper.StoreItemValues((IContainItemStorage)parentItemsControl, _expander, item); 402if (_expander != null) 404return Helper.FindTemplatedDescendant<ItemsPresenter>(_expander, _expander); 413internal Expander Expander { get { return _expander; } } 419if (_expander != null) 421return _expander.GetTemplateChild(ExpanderHeaderPartName) as FrameworkElement; 437else if (_expander != null)