primefaces ajax update of panel from another form

Question

I have some code here:

<f:view>
    <h:form id="formA">
        <p:treeTable id="tree">
            <p:ajax event="select" listener="..." update="mustRefresh" />  
            ...
        </p:treeTable>
    </h:form>
    <h:form id="formB">
        <p:panel id="mustRefresh"> ... </p:panel>

    </h:form>   
</f:view>

When user select a record on treeTable(formA), its detail will show on formB and ready to edit. My trouble is update="mustRefresh" not work, it throw exception like this:

javax.faces.FacesException: Cannot find component with identifier "mustRefresh" referenced from "A4578:formA:tree".

I tried with @form, formB, :formB and :mustRefresh but it does not work.

Akos K · Accepted Answer · 2013-01-09T06:39:27.190

24

Since mustRefresh in the component hierarchy is inside formB you should reference it with:

<p:ajax event="select" listener="..." update=":formB:mustRefresh" />

See how UIComponentBase.findComponent works.

edited Jan 09 '13 at 06:39

answered Jan 09 '13 at 06:28

Akos K

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2

What if mustRefresh is not inside of formB? In my case, I should not to put mustRefresh component inside a Form element. I am calling it as `update=":mustRefresh"`, however it cannot find and refresh element. – efirat Feb 23 '16 at 21:01

score 17 · Answer 2 · edited Jun 10 '15 at 02:37

17

Use update="@([id$=mustRefresh])" -- this will pick up displayPost directly. There is no need to map it to anything.

edited Jun 10 '15 at 02:37

josliber

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answered Jun 10 '15 at 00:59

Mahendra

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6

this is the easiest solution – jdurango Oct 19 '16 at 21:12
this worked better for me, thanks !! – AngelAvila Aug 18 '17 at 19:08
this one is really easy and convenient... – Prasobh.Kollattu Jan 13 '19 at 15:35
Best way to update, instance of @(.ID_ELEMENT) – TuGordoBello Aug 26 '19 at 22:36

primefaces ajax update of panel from another form

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