[Springframework-rcp-dev] [Spring-JIRA] Updated: (RCP-182) Support for "no value"

[Lieven D. (JIRA) <no...@sp...>]

     [ http://jira.springframework.org/browse/RCP-182?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lieven Doclo updated RCP-182:
-----------------------------

    Fix Version/s:     (was: 1.0.2)
                   1.x

> Support for "no value"
> ----------------------
>
>                 Key: RCP-182
>                 URL: http://jira.springframework.org/browse/RCP-182
>             Project: Spring Framework Rich Client Project
>          Issue Type: New Feature
>          Components: Binding System
>            Reporter: Oliver Hutchison
>            Assignee: Oliver Hutchison
>             Fix For: 1.x
>
>
> We need a way to tell a form model that it currently represents "no value". A form with "no value" being a form that does not have a backing object. 
> The question is how do we represent this? I'd imagine we could simply introduce a new class NoValue which when set into a form model causes all of the form model's property values to also become NoValue, you'd then need some logic in the bindings to detect no value so that they can modify themselves to display "nothing" however is appropriate.
> This idea can also be extended to the form's properties .

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