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.
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.