how to reRender certain row of dataTable/dataList

[javatwo]

<t:dataList id="areaList" var="area" value="#{bean.areaList}">

<t:div id="area">
<t:dataList var="city" value="#{area.cityList}>
.....
</t:dataList
</t:div>

</t:dataList>

<a4j:commandLink action="#{bean.refresh4thRow" reRender="3:area" />

With the code above, I hope to achieve:
when clicking the link, the 4th row will be refreshed.

But on server side it says: component id "3:area" not found.
If I change reRender to "areaList:3:area", I got the same error.
If I change reRender to ":areaList:3:area", no error, but nothing happened, 4th row was not refreshed.

I am using RichFaces 3.3.0, JBoss 5.0.1GA, Tomahawk 1.1.8. IE7.

How to refresh certain row of dataTable/dataList using a4j? Thanks for help.
Dave

[ilya_shaikovsky]

check our a4j:repeat sample at demosite.

And this could not be achieved with tomahawk components. You should use our iteration components to use particular cells update feature.

[pjc]

Please eloborate with more detailed explanation.

I am trying to update a single row in a list by using a combination of a4j:repeat and a4j:poll. But it seems as if each row is updated after each ajax response from the poll. Even though the value of ajaxKeys is a subset of all the items in the list.



<a4j:poll interval="2500" reRender="testSteps" />

<a4j:form>
<a4j:outputPanel id="testSteps">
<h:outputText>
<a4j:repeat var="childJobInfo" value="#{jobStatusBean.allSteps}" rowKeyVar="rowKey" ajaxKeys="#{jobStatusBean.ajaxKeys}">
<h:outputText>
child: #{childJobInfo.jobNumber}, rowKey: #{rowKey.class}, random: #{childJobInfo.random}

</h:outputText>
</a4j:repeat>
</h:outputText>
</a4j:outputPanel>
</a4j:form>

[nbelaevski]

Hi,

That's because you are re-rendering "testSteps" component, wrap your text into a4j:outputPanel and point reRender to it.