[richfaces-issues] [JBoss JIRA] (RF-11382) Datatable and ExtendedDatatable evaluate value attribute even if rendered=false

[RH Bugzilla Integration (JIRA)]

    [ https://issues.jboss.org/browse/RF-11382?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12757343#comment-12757343 ] 

RH Bugzilla Integration commented on RF-11382:
----------------------------------------------

Rodney Russ <rruss at redhat.com> changed the Status of [bug 916314|https://bugzilla.redhat.com/show_bug.cgi?id=916314] from NEW to ON_QA
                
> Datatable and ExtendedDatatable evaluate value attribute even if rendered=false
> -------------------------------------------------------------------------------
>
>                 Key: RF-11382
>                 URL: https://issues.jboss.org/browse/RF-11382
>             Project: RichFaces
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: component-tables
>    Affects Versions: 4.0.0.Final, 4.1.0.Milestone2
>         Environment: Fedora 15, Glassfish 3.1.1, CDI (Weld)
>            Reporter: Frederick Kämpfer
>            Assignee: Brian Leathem
>              Labels: lazy-loaded
>             Fix For: 4.3.0.M3
>
>   Original Estimate: 4 hours
>  Remaining Estimate: 4 hours
>
> In Richfaces 4 both datatable and extendedDatatable evaluate the value attribute even when rendered is set to false, even though it is not necessary. This makes it hard to achieve performance by trimming parts of the view tree. The built-in h:dataTable behaves correctly in that case.
> To reproduce simply try this snipplet:
> {code:xml}
> <h:form>
>      <rich:dataTable value="#{myBean.property}" rendered="false">
>       </rich:dataTable>
> </h:form>
> {code}
> Side note: The reason I'm posting this is, that i want to embed a rich:dataTable in a ajax loaded rich:togglePanelItem which is loaded on demand. Probably fixing the "render" problem will also make the dataTable lazy-loadable when switching to the corresponding togglePanelItem.
> I hope this is no duplicate, I only found RichFaces 3 issues mentioning this problem.

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