readonly select - when a SELECT field is made form.readony=true the SELECT is disbled (no readonly attr on SELECT) and an additional HIDDEN input is created to keep the value. The [Wrong] example does not have an empty option [form.maybenull] so Red is displayed but no value is sent Required [element], Single Occurrence, with Simple Type [inline-Form-ChooseOneColorWrong] localName is [ChooseOneColorWrong] without namespace Required [element], Single Occurrence, with Simple Type [inline-Form-ChooseOneColorWithDefault] localName is [ChooseOneColorWithDefault] without namespace Required [element], Single Occurrence, with Simple Type [inline-Form-ChooseOneColorRightWay] localName is [ChooseOneColorRightWay] without namespace Required [element], Single Occurrence, with Simple Type [inline-Form-ChooseOneColorRightWayUseIfValue] localName is [ChooseOneColorRightWayUseIfValue] without namespace readonly select - when a SELECT field is made form.readony=true the SELECT is disbled (no readonly attr on SELECT) and an additional HIDDEN input is created to keep the value. The [Wrong] example does not have an empty option [form.maybenull] so Red is displayed but no value is sent