Conditional style in JSF when validation has failed in general

Question

i have h:messages to display error messages, and there\'s a component that i want its style to change in case of validation error occurs (if any component has a validation e

Answer 1

You can use FacesContext#isValidationFailed() to check if validation has failed in general.

<h:outputText ... styleClass="#{facesContext.validationFailed ? 'fail' : 'success'}" />

Alternatively, you can use FacesContext#getMessageList() to check if there are any faces messages. This does not necessarily indicate a general validation failure, there can namely also be global/success messages which are been added in action method.

<h:outputText ... styleClass="#{not empty facesContext.messageList ? 'hasmessage' : 'nomessage'}" />