Update component outside of h:form - ComponentNotFoundException

Question

I am trying to update the element "entryDiv" in my xhtml from a button inside a form like this:

<div id="entryDiv">    
    <div>                              
        <h:form id="myForm">
            <c:forEach items="#{foodPlanManagementBean.loadRestaurantsHistory()}" var="restaurantHistoryEntry">
                    <p:commandButton value="MyName" update="entryDiv"/>
            </c:forEach>
        </h:form>
    </div>

    Some more unrelated elements here...
</div>

However, this way all I am left with is a ComponentFoundException, tell me that the component could not be located:

Cannot find component for expression "entryDiv" referenced from "form:myForm:j_idt25".

I already read up a bit on SO and I found one solution proposing to put a : in front of the "entryDiv", but that doesn't turn out to give me any different results.

How could I fix this?

raven · Accepted Answer · 2016-04-29T16:01:34.760

7

JSF can't see the id of your div if it is not a JSF component so you need to convert your div to a h:panelGroup

 <h:panelGroup id="entryDiv" layout="block">
     <div>                              
        <h:form id="myForm">
            <c:forEach items="#{foodPlanManagementBean.loadRestaurantsHistory()}" var="restaurantHistoryEntry">
                    <p:commandButton value="MyName" update=":entryDiv"/>
                </div>
            </c:forEach>
        </h:form>
    </div>
  </h:panelGroup>

if you don't put layout="block" it will render a span instead of a div.

edited Apr 29 '16 at 16:01

answered Apr 29 '16 at 15:40

raven

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Thanks for the help! Sadly, I'm still getting the error, even after replacing my div with a panelGroup – Sossenbinder Apr 29 '16 at 15:52
@Sossenbinder in this case you need to add the `:` – raven Apr 29 '16 at 16:00
Thats what I thought as well, but even that doesn't change a thing :( Are the parent elements of the "entryDiv"-panelGroup of any significance? – Sossenbinder Apr 29 '16 at 16:02
@Sossenbinder it shouldnt matter are they h:panelGroup too? why dont you try updating the root parent? – raven Apr 29 '16 at 16:08
1

@Sossenbinder there is this tag `` below the button is that ok ? – raven Apr 29 '16 at 16:09
@Sossenbinder i think i found the bug, try with a `p:panel` instead of the `h:panelGroup` and remove `layout="block"` and let me know. – raven Apr 29 '16 at 16:17
1

I fixed the mistake on my own. My own stupidity which was not displayed in this code, sorry :) Your answer was correct – Sossenbinder Apr 29 '16 at 16:38

Update component outside of h:form - ComponentNotFoundException

1 Answers1