We have an app that allows people to add elements to a ListMultipleChoice by
pressing on a button. We want the form to fail validation if the
ListMultipleChoice contains no elements.
I've tried this:
targettedSetsList.add(new IValidator()
{
public void validate(IValidatable validatable) {
// Always contains no items - strange
Collection list = (Collection)validatable.getValue();
if ( list.size() == 0 ) {
ValidationError ve = new ValidationError();
ve.setMessage("No sets have been specified for deployment");
validatable.error(ve);
}
}
});
but at validation the list.size() is always 0 even if the user has added
elements. Am I doing it the right way? Is there a better way?
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