Display validation message after a4j:commandButton is presse

[j-pro]

Good afternoon.

When I had my submit button as h:commandButton - the message was displayed("Value is required" in h:message). But when I've changed it to a4j:commandButton - it's not displaying. Is there anything I can do to leave it as a4j:commandButton and make it possible to display validation messages on the page?

I have:

<h:panelGroup>
 <font color="red">*</font>
 <h:outputText value="Tipul" />
</h:panelGroup>

<h:panelGroup>
 <h:selectOneMenu id="educationTypeEdit" required="true" value="#{amBean.education.educationTypeId}">
 <f:selectItems value="#{amBean.allTreeListMan.educationTypesSelectItems}"/>
 </h:selectOneMenu>
 <h:message style="color: red" for="educationTypeEdit"/>
</h:panelGroup>

...

<a4j:commandButton action="#{amBean.action4Education}" value="Adauga educatie"
 focus="educations_tab" reRender = "educationsTable">
</a4j:commandButton>

Thank you very much for your answer.

[sergeysmirnov]

It is easy. it happens because you point with reRender to the table, but say anyhow to update error message if needs.

It is helpful for you to read and see the example on the following page:

http://livedemo.exadel.com/richfaces-demo/richfaces/outputPanel.jsf?c=outputPanel

You can say:

<a4j:outputPanel ajaxRendered="true">
 <h:message style="color: red" for="educationTypeEdit"/>
</a4j:outputPanel>

or just:

<rich:message style="color: red" for="educationTypeEdit"/>

the rich:message is similar to the h:message, but incorporate the ajaxRendered="true" already.

Read about it at:
http://livedemo.exadel.com/richfaces-demo/richfaces/message.jsf

[j-pro]

Ah, sure... I'll use rich:message, thanks a lot for your answer!