Error: org.richfaces.renderkit.html.PanelMenuGroupRenderer (menu richface)

Question

good morning,
I am implementing a PanelMenu with richfaces but I have an error in Binding the html menu to the BAcking Bean
As follow My Bean Object:
@Stateful
@Name("userMenu")
public class UserMenuBean implements UserMenuLocal {
    private HtmlPanelMenu panelMenu = new HtmlPanelMenu();
public HtmlPanelMenu addControls() {
Application application = FacesContext.getCurrentInstance().getApplication();
             panelMenu.setId("panelMenu");
             panelMenu.setStyle("width:200px");
             panelMenu.setMode("ajax");
             panelMenu.setIconExpandedGroup("disc");
             panelMenu.setIconCollapsedGroup("disc");
             panelMenu.setIconExpandedTopGroup("chevronUp");
             panelMenu.setIconGroupTopPosition("right");
             panelMenu.setIconCollapsedTopGroup("chevronDown");
             panelMenu.setIconGroupTopPosition("right");
             List childrenMenu = getPanelMenu().getChildren();
             HtmlPanelMenuGroup panelMenuGroup = (HtmlPanelMenuGroup) application.createComponent(HtmlPanelMenuGroup.COMPONENT_TYPE);
                 panelMenuGroup.setLabel("products");
                 List childrenGroup = panelMenuGroup.getChildren();
                 HtmlPanelMenuItem output = (HtmlPanelMenuItem)application.createComponent(HtmlPanelMenuItem.COMPONENT_TYPE);
                 output.setId("toto");
                 output.setLabel("toto");
                 childrenGroup.add(output);
                 childrenMenu.add(panelMenuGroup);
return panelMenu;
}Here is my .xhtml page:
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
                xmlns:ui="http://java.sun.com/jsf/facelets"
                xmlns:h="http://java.sun.com/jsf/html"
                xmlns:f="http://java.sun.com/jsf/core"
                xmlns:a4j="http://richfaces.org/a4j"
                xmlns:rich="http://richfaces.org/rich"
                xmlns:c="http://java.sun.com/jstl/core"               
                template="#{theme['template.pageClassic']}">
<!-- Contenu de la page -->
    <ui:define name="pageContent">
<h:form id="customerForm">
        <h:panelGrid columns="2" columnClasses="cols" width="100%" border="1" cellspacing="0">
<rich:panelMenu binding = "#{userMenu.addControls()}"/>
        </h:panelGrid>
    </h:form>
    </ui:define>
</ui:composition>the error displayed when exe"cuting the menu(when displaying the .xhtml page) is as follow:
{code}
java.lang.NullPointerException
at org.richfaces.renderkit.html.PanelMenuGroupRenderer.isSelected(PanelMenuGroupRenderer.java:308)
at org.richfaces.renderkit.html.PanelMenuGroupRenderer.getSelectedClass(PanelMenuGroupRenderer.java:246)
at org.richfaces.renderkit.html.HtmlPanelMenuGroupRenderer.doEncodeBegin(HtmlPanelMenuGroupRenderer.java:112)
at org.richfaces.renderkit.html.HtmlPanelMenuGroupRenderer.doEncodeBegin(HtmlPanelMenuGroupRenderer.java:86)
at org.ajax4jsf.renderkit.RendererBase.encodeBegin(RendererBase.java:101)
at javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:788)
{code}
please does any one could help
thanks
regards
bibou
Edited by: bibou on May 5, 2008 10:27 AM

Answer 1

hi,
add something like this
panelMenu.setSelectedChild("toto")and there is my working code:
profiles = new HtmlPanelMenu();
          List<Profile> lp = currentUser.getProfiles();
          int count;
          if(lp.size()==0){
               HtmlPanelMenuItem item = new HtmlPanelMenuItem();
               item.setId("empty");
               item.setName("empty");
               HtmlOutputLink ol = new HtmlOutputLink();
               ol.setValue("/greenid/profiles.seam");
               HtmlOutputText ot = new HtmlOutputText();
               ot.setValue("create new profile");
               ol.getChildren().add(ot);
               item.getChildren().add(ol);
               profiles.getChildren().add(item);
               profiles.setSelectedChild("empty");
          }