Just a wild guess. If any method is called before validating the form returns a value that should re-post the form, your field will be null if it's not persisted.
So for example, is the submit button handling method returning anything or is it void ? Try *@Persist*ing your field, if it's not null, then my guess is probably right. This link may prove helpful: http://jumpstart.doublenegative.com.au/jumpstart/examples/navigation/whatiscalledandwhen On Mon, Mar 5, 2012 at 1:00 PM, Beat Durrer <bdur...@gmail.com> wrote: > Hi Giulio, > > No, they are not. The form is really straight forward as in the example: > > > <t:form t:id="applicationForm" > > <t:errors/> > > <div class="form-row"> > <div class="twoColumnFirst"> > <t:select t:id="category" model="categoryModel" > encoder="categoryModel" blankOption="ALWAYS" > value="categoryItem" zone="subCategoryZone"/> > </div> > <div class="twoColumnSecond" t:type="zone" > t:id="subCategoryZone" id="subCategoryZone"> > <t:select t:id="subCategory" value="subCategoryItem" > model="subCategoryModel" encoder="subCategoryModel"/> > </div> > </div> > > <div class="form-row"> > <a t:type="LinkSubmit" t:id="forward" class="button > button-prim">Next</a> > </div> > </t:form> > > > > > > 2012/3/5 Giulio Micali <giulio.mic...@gmail.com>: > > Are your selects in a loop ? > > > > > > > > 2012/3/5 Beat Durrer <bdur...@gmail.com> > > > >> Hey there > >> > >> For my project I need two chained select boxes. > >> I followed the example shown in the API > >> ( > >> > http://tapestry.apache.org/current/apidocs/org/apache/tapestry5/corelib/components/Select.html > >> ), > >> but used my own SelectModel for my custom value type. > >> > >> It all looks nice, but when I submit the form, the second select box > >> is always null. > >> When I add a @Validate("required") on both fields, the client > >> validation is happy with the boxes, but the server side validation > >> fails. > >> I added some debug output and of course the value turns out to be null > >> in onValidate() > >> > >> Using Firebug I noticed that the second select in the zone changes its > >> name and id each time the zone updates, it's something like > >> "carModel_135e275b957" > >> > >> Which leads me to the question: What did I do wrong? I never worked > >> with zones before, so do I need to do some kind of special handling? > >> > >> > >> Cheers and thanks in advance > >> Beat > >> > >> --------------------------------------------------------------------- > >> To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org > >> For additional commands, e-mail: users-h...@tapestry.apache.org > >> > >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org > For additional commands, e-mail: users-h...@tapestry.apache.org > > -- *Regards,* *Muhammad Gelbana Java Developer*
