getParameter via a4j:commandButton

[mblondel]

Hi,

I would like to get the parameter "newIp" in jsf when I click on a a4j:commandButton .

 <h:form id="form">
 <a4j:outputPanel id="agentEdition">
 <h:panelGroup id="groupModify" rendered="#{exaWizardBean.agentEditMode}">
 <a4j:region>
 <h:inputText id="newIp" value="toto"></h:inputText>
 <a4j:commandButton action="#{exaWizardBean.addNewIp}" value="ADD" reRender="agentEdition"></a4j:commandButton>
 </a4j:region>
 </h:panelGroup>
 </a4j:outputPanel>

In Java, the methos "addNewIp" :

 FacesContext context = FacesContext.getCurrentInstance();
 Map params = context.getExternalContext().getRequestParameterMap();
 String newIp = (String) params.get("newIp");

But the value is always null....
Thanks for your help

[amitev]

To make this working you have to use a4j:actionParam nested in the command button. Like this:

<a4j:commandButton action="#{exaWizardBean.addNewIp}" value="ADD" reRender="agentEdition">
<a4j:actionParam name="newIp" value="some value here" assignTo="some property here" />
</a4j:commandButton>

For more info see the a4j:actionParam doc:
http://labs.jboss.com/file-access/default/members/jbossajax4jsf/freezone/docs/devguide/ch06s13.html