Problem with navigation-rules

Question

Hello!!!
I'm using Jboss Jbpm with JSF and I want to navigate to other page when I fill a form and I send the data that I entered. I have declare the navigation-rules but it doesn't work and I don't know why.
In my faces-config.xml I've added the navigation-rules:
<managed-bean>
               <managed-bean-name>usuario</managed-bean-name>
               <managed-bean-class>com.miApp.UserBean</managed-bean-class>
               <managed-bean-scope>request</managed-bean-scope>
          </managed-bean>
     <navigation-rule>
               <from-view-id>/SolicitarAlta.xhtml</from-view-id>
               <navigation-case>
                    <from-action>#{usuario.registrar}</from-action>
                    <from-outcome>correcto</from-outcome>
                    <to-view-id>/results/correcto.jsp</to-view-id>
               </navigation-case>
     </navigation-rule>
     The UserBean has the method registrar:
public String registrar() {
       if(dni==null || nombre==null || apellidos==null || ocupacion==null || mail==null || tlf==null ||
password==null)      
            return "campos-obligatorios";
       if ((mail.trim().length() < 3) ||       (mail.indexOf("@") == -1))
                      return "mail-incorrecto";
       else if(tlf.length()!=9)     return "telefono-incorrecto";
            else if(dni.length()!=8) {return "dni-incorrecto";}
       return "correcto";
     And with this line:
<h:commandButton type="submit" value="Enviar" action="#{usuario.registrar}"/>     the method registrar is executed and I know that this method returns the string "correcto" but ... This doesn't redirect me to the page correcto.jsp
I thought that maybe if SolicitarAlta was an xhtml file the correcto page should be also an .xhtml file. I changed it but it doesn't work.
Any ideas? Could it be that I have to add something more in the faces-config.xml & web.xml file???
Thx!

Answer 1

I found the solution to my problem but I don't really understand why it was not working. My problem was due to the use of command button with a render set to false. I just put them at true and all my navigation rules work!
If someone know why it was not working, I would be glad to know!