[jira] [Resolved] (WICKET-4412) ChoiceFilteredPropertyColumn with setNullValid to true

["Martin Grigorov (Resolved) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/WICKET-4412?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Martin Grigorov resolved WICKET-4412.
-------------------------------------

       Resolution: Fixed
    Fix Version/s: 6.0.0
         Assignee: Martin Grigorov

I improved it just in Wicket 6.0 because this is a change in the behavior which may not be wanted by some apps.
In 1.5 you can always extend ChoiceFilter and override its #newDropDownChoice() method to set that flag.
                
> ChoiceFilteredPropertyColumn with setNullValid to true
> ------------------------------------------------------
>
>                 Key: WICKET-4412
>                 URL: https://issues.apache.org/jira/browse/WICKET-4412
>             Project: Wicket
>          Issue Type: Improvement
>          Components: wicket
>    Affects Versions: 1.5.3
>            Reporter: Rotschi Fanky
>            Assignee: Martin Grigorov
>            Priority: Trivial
>             Fix For: 6.0.0
>
>
> When filtering with a ChoiceFilteredPropertyColumn, the "Choose one" value disappears, so you can't undo the filter.
> Set "setNullValid" to true in the ChoiceFilter class so that you can choose the null value.

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