public IContextParameter getRealParameter(
     IContextManager manager, String property, Object element) {
   IContextParameter para = null;
   IContext context = null;
   if (manager != null) {
     context = manager.getContext(property);
     if (context == null) {
       return null;
     }
     if (element instanceof ContextTableTabParentModel) {
       if (IContextParameter.BUILT_IN.equals(
           ((ContextTableTabParentModel) element).getSourceId())) {
         IContextParameter builtContextParameter =
             ((ContextTableTabParentModel) element).getContextParameter();
         if (builtContextParameter != null) {
           para = context.getContextParameter(builtContextParameter.getName());
         }
       }
     } else if (element instanceof ContextTableTabChildModel) {
       ContextTableTabChildModel child = (ContextTableTabChildModel) element;
       String sourceId = child.getContextParameter().getSource();
       para =
           context.getContextParameter(
               sourceId, ((ContextTableTabChildModel) element).getContextParameter().getName());
     }
   }
   return para;
 }