validators do not usually handle null values, that is handled by component's set/getrequired() property. if you want your validator to handle nulls let it implement INullAcceptingValidator
-igor On Tue, Sep 14, 2010 at 11:22 AM, Chris Colman <[email protected]> wrote: > Here's the code I use to set up the DropDownChoice and its validator: > > Inside the panel contructor: > > studentList = new DropDownChoice("studentList", new > PropertyModel(orderManipulator.getDispatch(), "student"), students); > > IValidator<DropDownChoice> validator = > new IValidator<DropDownChoice>() > { > public void > validate(IValidatable<DropDownChoice> validatable) > { > if ( validatable.getValue() == > null ) > { > logger.trace("Drop down > value null"); > studentSet = false; > } > else > { > logger.trace("Drop down > value NOT null"); > studentSet = true; > > } > } > }; > > studentList.add(validator); > add(studentList); > > attachUpdateBehavior(studentList); > > > Later on when the user clicks a button the a panel validation method > calls > > studentList.validate(); > > but I never see the trace messages appear. > > I am trying to detect whether the user has chosen an option in the Drop > down rather than just left it as "Choose one". > > Currently I have no choices available in the drop down the validator > should always show the message "Drop down value null" - theoretically > according to my understanding. > > >>-----Original Message----- >>From: Chris Colman [mailto:[email protected]] >>Sent: Wednesday, 15 September 2010 3:39 AM >>To: [email protected] >>Subject: RE: Validating a DropDownChoice when not in a form >> >>> validate() :) >> >>I've been trying that but for some reason it's not triggering the >>FormComponent's validator. I must have some broken logic in there >>somewhere. >> >>> >>> -igor >>> >>> On Tue, Sep 14, 2010 at 3:12 AM, Chris Colman >>> <[email protected]> wrote: >>> > Is it possible to force a validate of a DropDownChoice when it's > not >>in >>> > a form but just normal page/panel? >>> > >>> > If so what method(s) do we call? >>> > >>> > >>--------------------------------------------------------------------- >>> > To unsubscribe, e-mail: [email protected] >>> > For additional commands, e-mail: [email protected] >>> > >>> > >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: [email protected] >>> For additional commands, e-mail: [email protected] >> >> >>--------------------------------------------------------------------- >>To unsubscribe, e-mail: [email protected] >>For additional commands, e-mail: [email protected] > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
