CODEWITHSUNDEEP
wicket
Habe Guema
Habe Guema

Reputation: 47

How to add warning message on a wicket Form

I am adding a warning message using form.warn method but the warning message is not getting displayed. how do you add warning message on a wicket form 

public class FormPanel extends BreadCrumbPanel {

public FormPanel(String id, IBreadCrumbModel breadCrumbModel)
{
    super(id, breadCrumbModel);
    Form<?> form = new Form<Void>("form");
    form.add(new SaveButton("save"));
    form.add(new FeedbackPanel("feedback"));


}

private class SaveButton extends Button {
        private static final long serialVersionUID = 1L;

        public SaveButton(String id) {
            super(id);
        }

        @Override
        public void onSubmit() {
             validate(getForm());
          }
}
validate(Form<?> form){
   if(some logic)
     form.warn(“message”);
}
}

Upvotes: 1

Views: 529

Answers (1)

martin-g
martin-g

Reputation: 17533

You better move your validation logic to IValidator#validate() or IFormValidator#validate().

Currently you call it in Button#onSubmit(). That means Wicket believes everything is valid in your form fields and calls the last step - onSubmit(). Usually after onSubmit() you either render a completely different page or a new instance of the current page. In both cases the current page instance is lost together with its Form and its feedback messages.

If IValidator#validate() fails then Wicket will call onError() instead and re-render the current page instance.

Upvotes: 2

Related Questions