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From "Dora Rajappan (JIRA)" <...@myfaces.apache.org>
Subject [jira] [Commented] (MYFACES-3542) The render attribute of AjaxBehavior should support late value expression evaluation
Date Wed, 25 Sep 2013 15:52:07 GMT

    [ https://issues.apache.org/jira/browse/MYFACES-3542?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13777657#comment-13777657
] 

Dora Rajappan commented on MYFACES-3542:
----------------------------------------

This particular behaviour of evaluating the render ids on the fly and then rendering those
ids  is not something the spec thought of implementing.   
                
> The render attribute of AjaxBehavior should support late value expression evaluation
> ------------------------------------------------------------------------------------
>
>                 Key: MYFACES-3542
>                 URL: https://issues.apache.org/jira/browse/MYFACES-3542
>             Project: MyFaces Core
>          Issue Type: New Feature
>            Reporter: Bernd Bohmann
>         Attachments: late-render-expression-0.png, late-render-expression-1.png, late-render-expression-2.png,
late-render-expression-3.png, late-render-expression-4.png, late-render-expression.tgz
>
>
> The render attribute of AjaxBehavior should evaluated during post-back after 'Invoke
Application' and before 'Render Response'. It's easly to add this feature with a own PartialViewContext.
But there is no call to processPartial with 'Invoke Application'. The Phase 'Render Response'
is too late if you are using c:if to skip components from the component tree. See attached
example app and pictures.

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