Lets see the code about 'adding elements by pressing on a button'. The
'getValue()' method is returning the value from the list box's HTTP
submitted values, if the add button is submitting values via ajax or some
other means then it may need a different approach.
-Clint
On Sun, May 1, 2011 at 8:15 PM, Coleman, Chris <
chris.cole...@thalesgroup.com.au> wrote:
> 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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