private void SetIsFocusActiveTrue(UIElement element)
 {
     foreach (var otherUiElement in UIElements.Where(p => p != element))
     {
         FocusGroupState.SetIsFocusActive(otherUiElement, false);
     }
     FocusGroupState.SetIsFocusActive(element, true);
 }
 private void SetIsFocusActiveFalse(UIElement element)
 {
     FocusGroupState.SetIsFocusActive(element, false);
 }