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https://issues.apache.org/jira/browse/TRINIDAD-1957?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Felix Röthenbacher updated TRINIDAD-1957:
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Status: Patch Available (was: Open)
> tr:selectManyShuttle with required="true" requires a selected item in the
> leading and trailing list box to pass validation.
> ---------------------------------------------------------------------------------------------------------------------------
>
> Key: TRINIDAD-1957
> URL: https://issues.apache.org/jira/browse/TRINIDAD-1957
> Project: MyFaces Trinidad
> Issue Type: Bug
> Components: Components
> Affects Versions: 1.2.13-core , 1.2.15-core
> Reporter: Felix Röthenbacher
> Attachments: SelectManyShuttleRenderer.diff.txt
>
>
> The selectManyShuttle component with required="true" imposes a required
> validation rule on each of its list boxes. This requires that not only an
> item has to be selected (moved from leading to trailing) but also that each
> list box must have an active selection (highlighted item) to pass validation.
> While this holds true if the user moves an item from one list to the other,
> it doesn't if the component is populated already and the user doesn't change
> anything. In this case the validation fails with a Field Error alert for each
> list box saying that at least one item has to be selected.
> The patch provided sets the required attribute for the child listboxes to
> false as this validation rule is already imposed by the parent component. The
> patch also updates the tests.
> I haven't checked it but quite possibly also the 2.0.x trunk is affected by
> this.
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