You can provide a custom converter that handles this in much the same way as a validator. You can customize the message using the attribute "requiredMessageDetail" by pulling it off the component reference in the Converter. This would also allow you to specify default messages in addition to field specific messages. In your getAsObject method just check if the field is empty, throw a converterException otherwise, and put the messages in some context.
Regards Bob -----Original Message----- From: Stephen Friedrich [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 30, 2008 3:12 PM To: MyFaces Discussion Subject: Re: What for a damm validation conncept Yup, JSF validation is really lacking. I don't think you have a chance to get that desired behavior with JSF validation. The most pragmatic solution is probably to "manually" do the validation in your action handler, instead of using JSF's validation concept. (Yes, I just hate that, even more so because I use Seam to enable entity beans as backing beans for my forms. However now I can't do that any longer and have to use artificial value objects instead - no validation => invalid values get written to the entities, because those entities are still managed, they would be written to the DB on next flush. What a mess.) jhomuth wrote: > Hi List, > > I've tried a lot to validate my selectManyListBox. This validation > would be very simple, because I only want to validate if the user > selected something in that listbox. But as I know now, that a custom > validator will not called if the field, which you want to validate is empty. WTF. > Someone would say, why not use the "required" Attribute of that > UIComponent. But that's f******g bad, because there only will a > standard message displayed and that not what I want to do. Ok I can > customize the Message but only to a standard required message which > could not be customized for different fields. Is there any workaround, > that my custom validator will be called if the damm required attribute > is not set and the field to validate has no input. > > Please help me before I get real crazy. > > Thx for suggestions
