code: public CmsAttributeValueView getParentView() {
  
          Widget ancestor = getParent();
          while ((ancestor != null) && !(ancestor instanceof CmsAttributeValueView)) {
              ancestor = ancestor.getParent();
          }
          return (CmsAttributeValueView)ancestor;
      }
docs: Gets the parent attribute value view, or null if none exists.<p>
  
  @return the parent attribute value view