Negative test case for the model attribute of nodeset binding, model IDREF of itemset does not refer to a model element Audi BMW Mercedes Porsche Volkswagen 3.2.4.e invalid model IDREF You should see a message 'xforms-binding-exception', or get a fatal error. model does not point to a model element, you should not see any content in the select box. Cars xforms-binding-exception Submit Cars