DataScroller - change displayed rows numbers - below table

[multanis]

Hi,

I'm trying to have datascroller with dynamic rows number, but it works only if my dataScroller is above my table.

Basically, what I have is:

<h:selectOneMenu value="#{myBean.batchRows}">
     <f:selectItem itemLabel="10" itemValue="10"/>
     <f:selectItem itemLabel="20" itemValue="20"/>
     <f:ajax render="table table-ds" />
</h:selectOneMenu>
...
 <rich:dataTable id="table" rows="#{myBean.batchRows}" value="#{myBean.dataModel}" var="var">
...
</rich:dataTable>

<rich:dataScroller id="table-ds" page="#{myBean.batchPage}" for="table" renderIfSinglePage="false" boundaryControls="hide" fastControls="hide">
...
</rich:dataScroller>

And the behaviour with 21 elements:

- on page 2 displaying 20 element (so only 1 is visible), if I switch to 10, I stay on page 2 but I still have only 1 element visible.

If my datascroller is above my table it works fine.

Debugging a bit, it seems that when UIDataAdaptor.walk method is 1st called, getComponentState() is updating the state rows and first properties with values:

- rows: 10 (correct)

- first: 20 (weird)

Following calls to this method is setting those properties to:

- rows: 10 (correct)

- first: 10 (correct)

I'm using richfaces 4.2.1.Final

Is this a bug ? Should I fill it in Jira ? Is there any workaround ?

Thanks a lot !

[kwutzke]

Code?

[multanis]

Oups, sorry I haven't noticed it was not visible (wrong insert). It is now...

Don't hesitate if you need more information...

[jpapouse]

I've tried it with our testing application on JBoss AS 7.1.1 and RichFace 4.2.2.Final and I can't reproduce the described behaviour. Can you try RichFaces 4.2.2.Final?

In the case it doesn't work with RF 4.2.2.Final, please create a new issue in JIRA and provide information about your environmet (container), it would be great to attach a simple maven applicition reproducing the behaviour. You can assign the issue to me (jpapouse).

[multanis]

I already tried with RichFaces 4.2.2.Final without any success.

Will try to create a small test case within a maven project.

Thanks !

[multanis]

I managed to reproduce the problem in a simple example (see test.jspx and TestFace.java in attached files).

I alos noticed that having the dataScroller directlye below the table is working fine, while wrapping the table within a h:panelGroup is failing.

i.e.:

<h:selectOneMenu value="#{testFace.rows}">
        <f:selectItem itemLabel="5" itemValue="5" />
        <f:selectItem itemLabel="10" itemValue="10" />
        <f:selectItem itemLabel="20" itemValue="20" />
        <f:ajax render="table ds" />
    </h:selectOneMenu>

    <h:panelGroup>
        <rich:dataTable value="#{testFace.datamodel}" rows="#{testFace.rows}" var="var" id="table">
            <rich:column>
                <h:outputText value="#{var}"/>
            </rich:column>
        </rich:dataTable>
    </h:panelGroup>
    <rich:dataScroller id="ds" page="#{testFace.page}" for="table" />

I filled a Jira issue https://issues.jboss.org/browse/RF-12289 but I cannot assign it to you...