CommandButton doesn't work in JSF fragment?

Question

Hi all,
Why commandButton doesn't work in JSF fragment? while I set partialSubmit as true!
As following:
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.1"
xmlns:af="http://xmlns.oracle.com/adf/faces/rich"
xmlns:h="http://java.sun.com/jsf/html">
<af:inputText label="Your Name" id="it1"/>
<af:inputDate label="BirthDate" id="id1"/>
<af:commandButton partialSubmit="true" text="Calculate Age" id="cb1"/>
<af:outputText id="ot1"/>
</jsp:root>
Thanks in advance :)))

Answer 1

The full jsff code is:
<?xml version='1.0' encoding='windows-1252'?>
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.1"
xmlns:af="http://xmlns.oracle.com/adf/faces/rich"
xmlns:h="http://java.sun.com/jsf/html">
<af:inputText label="Your Name" id="it1" binding="#{fragment_bean.it1}"/>
<af:inputDate label="BirthDate" id="id1" binding="#{fragment_bean.id1}"/>
<af:commandButton partialSubmit="true" text="Calculate Age" id="cb1"
binding="#{fragment_bean.cb1}"
action="#{fragment_bean.cb1_action}"/>
<af:outputText id="ot1" partialTriggers="cb1" value="test"
binding="#{fragment_bean.ot1}"/>
<!--oracle-jdev-comment:auto-binding-backing-bean-name:fragment_bean-->
</jsp:root>
Java Bean is generated using "Auto Bind" feature in Jdeveloper 11.1.1.3.0:
public class fragment_bean {
private RichOutputText ot1;
private RichCommandButton cb1;
private RichInputDate id1;
private RichInputText it1;
public fragment_bean() {
public void setOt1(RichOutputText ot1) {
this.ot1 = ot1;
public RichOutputText getOt1() {
return ot1;
public void setCb1(RichCommandButton cb1) {
this.cb1 = cb1;
public RichCommandButton getCb1() {
return cb1;
public void setId1(RichInputDate id1) {
this.id1 = id1;
public RichInputDate getId1() {
return id1;
public void setIt1(RichInputText it1) {
this.it1 = it1;
public RichInputText getIt1() {
return it1;
public String cb1_action() {
// Add event code here...
System.out.println("Hi test !!!");
return null;
}