[jboss-user] [JBoss Seam] - ui example: How to add ajax support for selectItems

jneubert do-not-reply at jboss.com
Fri Jan 18 06:14:57 EST 2008


I have a use case very similar to the continent/country fields in the ui example, and try to add ajax: The selectItems list for countries should be updated and rerendered when the user selects a continent.

I tried the straightforward approach:

  | <s:decorate template="decorateField.xhtml">
  |   <ui:define name="label">Continent of Birth</ui:define>
  |   <h:selectOneMenu value="#{personHome.instance.continent}" required="true" id="continent">
  |     <s:selectItems value="#{continents.resultList}" var="continent" label="#{continent.name}" noSelectionLabel="Please Select..."/>
  |     <s:convertEntity />
  |     <a:support event="onchange" reRender="countrySelect" />
  |   </h:selectOneMenu>
  | </s:decorate>
  | 
  | <s:decorate template="decorateField.xhtml">
  |   <ui:define name="label">Country of Birth</ui:define>
  |   <h:selectOneRadio id="countrySelect" value="#{personHome.instance.country}" required="true" disabled="#{empty person.continent}">
  |     <s:selectItems value="#{personHome.instance.continent.countries}" var="country" label="#{country.name} (#{country.continent.name})" noSelectionLabel="Please Select..." hideNoSelectionLabel="true"/>
  |     <s:convertEntity />
  |   </h:selectOneRadio>
  | </s:decorate>
  | 
(and a lot more), but nothing worked, the country selection is not rerendered. Can anybody help, please?

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