[Trinidad] newbie PPR problem

[Jessica Johnson]

Hi all,

I just started using Trinidad 1.0.1 and would like to use PPR so that when a
value is selected in a SelectManyListBox A, it re-renders SelectManyListBox
B with some of the options disabled.  The problem is that whenever I select
something is the first list box, the entire page is re-rendered.   I am
outputting a random number at the bottom of the page so I know that the
entire page is being re-rendered.  I assume that I am missing something
simple, but for the life of me I can't figure out what.  If someone could
take a look at the code below and let me know what is wrong, I would greatly
appreciate it.

Thanks in advance,

jessica


<%@ taglib uri="http://java.sun.com/jsf/core"; prefix="f" %>
<%@ taglib uri="http://java.sun.com/jsf/html"; prefix="h" %>
<%@ taglib uri="http://myfaces.apache.org/trinidad/html"; prefix="trh" %>
<%@ taglib uri="http://myfaces.apache.org/trinidad"; prefix="tr" %>
<[EMAIL PROTECTED] errorPage="/exception_error.jsp"%>


<f:view>

<h:form id="filter_results_form">

 <tr:subform id="select_box_form" >
                <h:panelGrid columns="2" width="100%" align="center">


                    <tr:selectManyListbox id="selectA"
                                          size="4"
                                          autoSubmit="true"
                                          valueChangeListener="#{
testLoader.aChanged}"
                                          value="#{testLoader.AList}" >
                        <tr:selectItem label="--- All As ---" value="-1" />
                        <f:selectItems value="#{testLoader.origAList}" />
                    </tr:selectManyListbox>

                    <tr:selectManyListbox
id="selectB"
                                          size="4"
                                          valueChangeListener="#{
testLoader.bChanged}"
                                          value="#{testLoader.BList}"

partialTriggers="filter_results_form:select_box_form:selectA" >
                        <tr:selectItem label="--- All Bs ---" value="-1" />
                        <f:selectItems value="#{testLoader.origBList}" />

                    </tr:selectManyListbox>

                    <tr:outputText styleClass="message" value="Selected As:
#{testLoader.selectedAs}"  />
                    <tr:outputText styleClass="message" value="Selected Bs:
#{testLoader.selectedBs}"  />

                </h:panelGrid>
            </tr:subform>

    <tr:outputText styleClass="message" value="#{testLoader.random}"  />

</h:form>
</f:view>


package com.imi.jsf.pageloaders;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import javax.faces.event.ValueChangeEvent;
import javax.faces.model.SelectItem;


public class TestLoader {


    public TestLoader() {

        origAList = new ArrayList();
        origAList.add(new SelectItem("853", "A1"));
        origAList.add(new SelectItem("862", "A2"));

        origBList = new ArrayList();
        origBList.add(new SelectItem("862,4748", "B1"));

    }

    private List aList;
    public List getAList() { return aList; }
    public void setAList(List aList) { this.aList = aList; }

    private List bList;
    public List getBList() { return bList; }
    public void setBList(List bList) { this.bList = bList; }

    private List origAList;
    public List getOrigAList() { return origAList; }
    public void setOrigAList(List origAList) { this.origAList = origAList; }

    private List origBList;
    public List getOrigBList() { return origBList; }
    public void setOrigBList(List origBList) { this.origBList = origBList; }

    public List getSelectedAs() { return selectedAs; }
    public List getSelectedBs() { return selectedBs; }

    private List selectedAs;
    public void aChanged(ValueChangeEvent vce) {
        selectedAs = (List) vce.getNewValue();
        aList = selectedAs;
    }

    private List selectedBs;
    public void bChanged(ValueChangeEvent vce) {
        selectedBs = (List) vce.getNewValue();
        bList = selectedBs;
    }


    private Random generator = new Random();
    public int getRandom() {
        return generator.nextInt();
    }
}