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https://issues.apache.org/jira/browse/TAP5-1694?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13126624#comment-13126624
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Massimo Lusetti commented on TAP5-1694:
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Not directly.
Using a Symbol would be nice since it will let you have on easy place where to
store your choice but it needs some changes which are discussed here:
http://mail-archives.apache.org/mod_mbox/tapestry-dev/201110.mbox/browser
Basically we need a way to specify a binding in a Symbol value.
> Ability to override the default NullFieldStrategy
> -------------------------------------------------
>
> Key: TAP5-1694
> URL: https://issues.apache.org/jira/browse/TAP5-1694
> Project: Tapestry 5
> Issue Type: Wish
> Components: tapestry-core
> Affects Versions: 5.3
> Reporter: David Sundsskard
>
> My use-case is that I want empty textfields to post an empty String instead
> of null.
> I have implemented a nullfieldstrategy and it can be set on the textfield,
> but components that create textfields on the fly (eg. Grid) use the default
> NullFieldStrategy defined in AbstractTextField.
> I can't contribute a new "defaults" as that conflicts.
> It would be nice to be able to override the strategy defined in
> AbstractTextField.
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