[richfaces-issues] [JBoss JIRA] Updated: (RF-6862) RF picklist does not update target list after onchange event

[Brendan Farragher (JIRA)]

     [ https://jira.jboss.org/jira/browse/RF-6862?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Brendan Farragher updated RF-6862:
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    Attachment: TestRichFacesPicklistWithoutBinding.tar
                TestRichFacesPicklistWithBinding.tar


I tried two variations with the ajaxSingle="true" attribute added to the a4j:support tag, but neither one worked for me. The first variation tried to reRender an a4j:outputPanel that wraps the picklist, and the other just tries a straight re-rendering of the picklist itself (you'll see one version commented out in the jsp). 

I am attaching my test applications (exported from RHDS as Eclipse archive files, compressed, and in .tar format). The "WithoutBinding" version does not work. The "WithBinding" version is functional, and contains the workaround that I have described.

I also receive an UnsupportedOperationException in the "WithoutBinding" version when I select from the selectonelistbox the *second* time. This is probably due to the fact that I need to clear the select items (target) list when the selectonelistbox selection changes.

Thank you.

> RF picklist does not update target list after onchange event
> ------------------------------------------------------------
>
>                 Key: RF-6862
>                 URL: https://jira.jboss.org/jira/browse/RF-6862
>             Project: RichFaces
>          Issue Type: Bug
>    Affects Versions: 3.2.2, 3.3.0
>         Environment:  JBoss AS 4.2.3 (Ubuntu Linux 8.04)
>            Reporter: Brendan Farragher
>         Attachments: TestRichFacesPicklistWithBinding.tar, TestRichFacesPicklistWithoutBinding.tar
>
>
> The RichFaces picklist component does not re-load it's pre-selected (target) data correctly when an onchange event of a dependent selectonelistbox component is raised. If a valuechangelistener method is set on the selectonelistbox, and that method loads the picklist's source and target lists with new data, the target list is not populated when the page is re-displayed (in this case, the target list in the backing bean maps to the value attribute of the picklist tag). I even tried wrapping the picklist in an a4j:outputPanel with an a4j:support event=onchange reRender=pickListName tag placed inside of the selectonelistbox tag, but the target list is never populated.
> I have a JSF test application developed that I can provide you with that demonstrates the problem, and a second JSF test application that contains a workaround using a bound HtmlPickList (the workaround is not really appropriate for Seam integration, though). (Please update the JIRA with a forwarding address if you would like my test apps)
> Please note that this bug has more important implications for Seam integration, since JSF component binding is discouraged. As a result, the value attribute of the picklist (the target data) needs to be refreshed via the picklist tag value attribute (or via some a4j help).

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