Jayashri

In your JSF application built using Creator, you might run into a scenario where you want to execute validators only upon button click and not when form submission happens via JavaScript (for example when turn on autosubmit on change on a drop down list). In this case you won't be able to attach any validators on your input components because once you attach them, they will always get executed during ProcessValidations phase irrespective of whether the postback happened via button click or form submission. So the work around is to do conditional validation upon button click. So in your button's action handler, you validate your input field and if it failed, return "null" as outcome from your action handler to tell the JSF framework to redisplay the same page instead of processing the navigation rules for the current view. Here is the sample code you can add to your action handler to ensure that textfield is not null when the page is submitted via button click.

 if (textField1.getValue() == null) {
 FacesMessage message = new FacesMessage("Textfield1 is required. Enter a value");
 message.setSeverity(FacesMessage.SEVERITY_ERROR);
 getFacesContext().addMessage(textField1.getClientId(getFacesContext()), message);
 return null;
 }
 return "success";

Also, see David Botteril's blog on this topic for more alternatives.