[richfaces-issues] [JBoss JIRA] (RF-12289) ataScroller - change displayed rows numbers - below table

[Nicolas Daniels (JIRA)]

Nicolas Daniels created RF-12289:
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             Summary: ataScroller - change displayed rows numbers - below table
                 Key: RF-12289
                 URL: https://issues.jboss.org/browse/RF-12289
             Project: RichFaces
          Issue Type: Bug
      Security Level: Public (Everyone can see)
    Affects Versions: 4.2.2.Final, 4.2.1.Final
            Reporter: Nicolas Daniels


Trying to have datascroller with dynamic rows number, but it works only if dataScroller is above the 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>
...
<h:panelGroup>
 <rich:dataTable id="table" rows="#{myBean.batchRows}" value="#{myBean.dataModel}" var="var">
...
</rich:dataTable>
</h:panelGroup>

<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. If the table is not wrapped within a panelGroup, it works as well.

 

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)

 

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