public override void OnApplyTemplate() { base.OnApplyTemplate(); this.part_Popup = this.GetTemplateChild("PART_Popup") as Popup; if (this.part_Popup == null) { throw new NullReferenceException("'{0}' template part is not found on 'PopupToggle' control " + ((object)"PART_Popup")); } PopupToggle.SetPopupPlacement(this.part_Popup, this.PopupPlacment); }
private static void OnPopupPlacementChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs) { PopupToggle popupToggle = dependencyObject as PopupToggle; Popup partPopup = popupToggle.part_Popup; if (partPopup == null) { return; } PopupToggle.SetPopupPlacement(partPopup, popupToggle.PopupPlacment); }