ui:repeat, c:foreach in JSF 2.0

[nimo frey]

I know the difference of ui:repeat and c:forEach (http://www.ilikespam.com/blog/c:foreach-vs-ui:repeat-in-facelets).

However, I do not know, why ui:repeat does not view the datas of my list whereas c:forEach does:

<h:form>
<h:commandButton action="#{bean.computeList}" value="get list">
	<f:ajax execute="@form" render=":panel" />
</h:commandButton>
</h:form>

<h:panelGrid id="panel">
	<h:outputText value="#{bean.list}" id="output_text"/>
<!-- this does not work, it shows no datas, but the list is not empty -->
		<ui:repeat var="#{bean.list}" value="_l">
		       List via ui-repeat: #{_l.id}
		</ui:repeat>
<!-- this works, it shows datas of my list, however, it shows the data only when clicking the button twice instead of one time -->
		<c:forEach items="#{bean.list}" var="_l">
			<h:outputText value="List via  c:foreach #{_i.id}" />
		</c:forEach>
</h:panelGrid>

when clicking the button, I update my "panel" via ajax. However, only "output_text" shows me, the list. Ui:repeat shows nothing after ajax update (I guess it does not iterate through the list). C:ForEach iterate through the list and shows me the listdata, but only when clicking the button twice! What is wrong?

I use JSF 2.0

[Tim Holloway]

From what I can see, you're better off forgetting the algorthmic stuff altogether. Just use a dataTable. It's a lot cleaner. JSF views aren't the place to put code, even when it's tag code.

Personally, I like RichFaces, where I can use the a4j:commandButton to do the request and set its reRender attribute to indicate what parts of the display to update. Nice and simple.

[nimo frey]

Indeed, I can use h:datatable, but I want to know, why ui:repeat is not working. With JSF 1.2 it is working, with JSF 2.0 it is not working! Is there a bug?

[Tuukka Mustonen]

Hi, I just run into quite a similar problem. Did you find a solution for this?