Update JSF only works in the whole form (Primefaces)

Question

good night. I’m racking my brain with a problem that seemed simple

I have a form with some fields, when selecting a combobox I want to hide and display some fields. I am using p:ajax to perform the update.

And in the fields to hide, I’m using' rendered'.

Everything works perfectly if I execute the command:

<p:ajax update="frmCad" event="change" />

This practice is not legal because it always resets all other fields that will already be filled. However, if I set the specific field to update, it does nothing. In this case it would be:

<p:ajax update="pam:lblSexo" event="change" />

Someone could give me a light?

In short, my code is as follows::

<h:form id="frmCad" prependId="false">
  <p:accordionPanel id="pam" multiple="true" activeIndex="0,1">
    <p:tab id="tbCad" title="Cadastro" >
      <h:panelGrid id="gp1" columns="3" columnClasses="primeiraColumnP">

      <h:outputLabel id="lblSegPessoa" for="id" value="Pessoa: " styleClass="estilolabelCampos" />
      <p:selectOneRadio id="optTipo" value="#{pessoaBeanView.objetoSelecionado.pes_tipo_pessoa}">
        <f:selectItem itemLabel="Física" itemValue="Fisica" />
        <f:selectItem itemLabel="Jurídica" itemValue="Juridica" />
        <p:ajax update="pam:lblSexo" event="change" />
      </p:selectOneRadio>

  <p:outputLabel id="lblSexo" value="Sexo: " rendered="#{pessoaBeanView.objetoSelecionado.pes_tipo_pessoa == 'Fisica'}" />

...fechamentos>

I appreciate the help.

Answer 1

The update will only work if the component lblSexo is rendered. Try making the following change:

(...)

<p:ajax update="pnlSexo" event="change" />

(...)

<h:panelGroup id="pnlSexo">
    <p:outputLabel id="lblSexo" value="Sexo: " rendered="#{pessoaBeanView.objetoSelecionado.pes_tipo_pessoa == 'Fisica'}" />
</h:panelGroup>