private void UnsetSelectedControl()
 {
     if (_selectedControl.Control != null)
     {
         _selectedControl.Control.IsSelected = false;
     }
     _selectedControl = default;
 }
 private void SetControlAsSelected(UINavControl uiNavControl)
 {
     UnsetSelectedControl();
     _selectedControl = uiNavControl;
     _selectedControl.Control.IsSelected = true;
 }