p:commandbutton action doesn't work inside p:dialog

The dialog, when used with an appendToBody/appendTo="@Body" must have its own form.

<p:dialog>
    <h:form>
        ...
    </h:form>
</p:dialog>

Because, when the dialog is generated into HTML output, it's by JavaScript relocated to the end of HTML <body> which causes it to not be sitting in any form anymore. The generated HTML DOM tree ends up to look like this (use webbrowser's dev tools to see it):

<body>
    ...
    <form id="createAppUserForm">
        ...
    </form>
    ...
    <div id="newRoleDialogId" class="ui-dialog ...">
        ...
    </div>
</body>

The appendToBody="true" plays a role in here. The end of body ensures easy and best cross browser compatibility of displaying a modal dialog by JavaScript.

The same is true by the way for a p:overlayPanel with an appendTo...

But also make sure there is, before 'moving' the p:dialog, there is not a nested h:form. So prevent

<h:form>
   ...

    <p:dialog>
        <h:form>
            ...
        </h:form>
    </p:dialog>

   ...
</h:form>

Since although it ends up like

 <body>
    ...
    <form id="createAppUserForm">
        ...
    </form>
    ...
    <div id="newRoleDialogId" class="ui-dialog ...">
        <form>
           ...
        </form>
    </div>
</body>

it is initially invalid html

See also:

  • How to show details of current row from p:dataTable in a p:dialog and update after save
  • Creating master-detail table and dialog, how to reuse same dialog for create and edit
  • How to use <h:form> in JSF page? Single form? Multiple forms? Nested forms?

try this p:remoteCommand

http://www.primefaces.org/showcase/ui/ajax/remoteCommand.xhtml

this is my example

<h:commandButton value="Aceptar" type="button" onclick="irAConf()" class="art-button">
</h:commandButton>

<p:remoteCommand name="irAConf"
action="#{configuracionBean.irAConfiguracion}"/>                

Adding (process="@this") to commandButton worked for me.