You'd have to write a custom method for that. Or replace the value on submit or something like that. The required-rule works with an empty value.
Jörn On Tue, May 26, 2009 at 3:22 PM, ciupaz <luigi.zambe...@gmail.com> wrote: > > Thank you Jorn, now with the "name" attribute it's working. > A simple question. > For business rules I have to give the value "-1" to the "Select the > city" option. > Like this: > > <select id="city" name="city"> > <option value="-1">Select a city</option> > <option value="1">Milan</option> > <option value="2">Turin</option> > <option value="3">Rome</option> > <option value="4">Venice</option> > </select> > > How can I validate in this case? > > Luis