JSF update component from different form, boths forms with prependid false

Question

Hi i have this sceneario, i have 2 forms each of them with preprendId=false, the first one have a h:panelGroup that i want to update from the second h:form. The problem that i have is that i dont know what String i have to put for update my panelGroup. I tried with this strings:

panelGroupComboId and :panelGroupComboId

But i always get: Cannot find component with expression ":panelGroupComboId" referenced from...

Because i need to use preprendId=false at least in the first form (where my panelGroup is) i cannot set preprendIf=true, but if i did it i could update my component with any problem using: :loginFormRegistroId:panelGroupComboId

But remember i NEED to use preprendId= false, when i use preprendId=false i can see using firebug that my h:panelGroup is converted as a div with the id panelGroupComboId, then thats why i dont how do i have to call for update it.

Is preprendId=true the only way to this works?

FIRST FORM

 <h:form id="loginFormRegistroId" prependId="false">
    <h:panelGroup id="panelGroupComboId" layout="block">
        <select id="comboCarreraId" name="comboCarreraId" class="form-control">
            <ui:repeat value="#{miBean.list}" var="obj">
                <option value="#{obj.id}">#{obj.name}</option>
            </ui:repeat>
        </select>
    </h:panelGroup>
</h:form>

SECOND FORM

 <h:form prependId="false">
    <p:remoteCommand
        name="cargarCarrerasRemoteCommand"
        process="@this"
        actionListener="#{miBean.myListener}"
        update="panelGroupComboId">
    </p:remoteCommand>
</h:form>

By the way i DONT want to update the entire first FORM, just my h:panelGroup

prependId is one of the worst additions to JSF 1.2 They should never have added it. Get rid of it. It really solves nothing unsolvable and creates only new problems. — BalusC
Possible duplicate of UIForm with prependId="false" breaks <f:ajax render> — Kukeltje

Asif Asif · Accepted Answer · 2014-01-30T09:06:13

Remove prependId from the forms. Update the code as

<h:form>
    <p:remoteCommand
        name="cargarCarrerasRemoteCommand"
        process="@this"
        actionListener="#{miBean.myListener}"
        update=":loginFormRegistroId:panelGroupComboId">
    </p:remoteCommand>
</h:form>

JSF update component from different form, boths forms with prependid false

1 Answers