jsf - Why did ajax break when sub forms are loaded in a c:forEach block? -


i found strange behavior using jsf 2.0 , ajax functionality. ajax seems no longer work if subpage loaded in c:foreach block.

i using main form includes set of subpages dynamically (based on backend configuration): 

<c:foreach items="#{workflowcontroller.editorsections}" var="section">     <div class="imixs-portlet" >         <ui:include src="/pages/workitems/parts/#{section.url}.xhtml"/>     </div> </c:foreach>

in case not possible use simple f:ajax render"..." tags.

for example following code snippet work first subpage included in c:foreach tag : 

<h:commandbutton value="welcome me">         <f:ajax execute="name" render="output" /> </h:commandbutton> <h:outputtext id="output" value="#{childworkitemcontroller.name}" />

if try use f:ajax in subpage included after first subpage, in subpage ajax no longer work.

so working solution skip c:foreach block , include subpages manually.

why did ajax behavior breaks when subpages included in c:foreach block?

the problem did not use ui:composition tag subpages.

this structure of subpage before

<f:subview xmlns="http://www.w3.org/1999/xhtml" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html" xmlns:c="http://java.sun.com/jsp/jstl/core" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:fn="http://java.sun.com/jsp/jstl/functions" id="mysubpage">  <h:panelgroup layout="block" styleclass="imixs-form-section"         id="minutes_body" binding="#{minutesbody}"> ....  </f:subview>

after changed ui:composition working!

<ui:composition xmlns="http://www.w3.org/1999/xhtml" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html" xmlns:c="http://java.sun.com/jsp/jstl/core" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:fn="http://java.sun.com/jsp/jstl/functions">  <h:panelgroup layout="block" styleclass="imixs-form-section"         id="minutes_body" binding="#{minutesbody}"> ....  </ui:composition>

with thie ui:composition tag subpages can included in situation , ajax working expected. in 1 situation still necessary surround part of subpage f:subview element. otherwise got alert box message:

malformedxml: during update: workitem_form:form_panel:j_idt179 not found

<ui:composition xmlns="http://www.w3.org/1999/xhtml" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html" xmlns:c="http://java.sun.com/jsp/jstl/core" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:fn="http://java.sun.com/jsp/jstl/functions">  <!-- subview tag necessary here --> <f:subview>      <!-- minutes body -->     <h:panelgroup layout="block" styleclass="imixs-form-section"         id="minutes_body" binding="#{minutesbody}"> .....     </f:subview>  </ui:composition>

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