5.1.e built-in primitive type via xsi:type When you activate the Valid Value trigger you must see an "xforms-valid" output for the date data type. When you activate the Invalid Value trigger you must see an "XFORMS-INVALID" output for the date data type. Event result: Valid Value 1999-05-31 Invalid Value Bogus Data date XFORMS-INVALID (date) xforms-valid (date)