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Re: Last call comment about readonly property with calculate (PR#45)

From: John Boyer <xforms-issues@mn.aptest.com>
Date: Wed, 13 Jun 2007 11:31:02 -0500
Message-Id: <200706131631.l5DGV2rl003286@htmlwg.mn.aptest.com>
To: david.landwehr@picoforms.com
CC: www-forms-editor@w3.org

We agree it was unclear, but we find that calculate merely defaults readonly to
true, and that it can be set to false, and that there are use cases, namely
default value. We tested the use case and found it works. We changed the note in
4.3.6 [ http://www.w3.org/MarkUp/Forms/specs/XForms1.1/index-diff.html#evt-recalculate]
and put an example in MIP for readonly [

Please let us know if this resolution is acceptable.

Thank you,
The Forms Working Group

> Having the following:
> <xf:model>
>   <xf:instance>
>     <data xmlns="">value</data>
>   </xf:instance>
>   <xf:bind nodeset="." readonly="false()" calculate="1"/>
> </xf:model>
> It is not spelled out in the specification that it is possible to
> override the default state when it has a calculate on it. The default
> value is true() when the node has a calculate on it. On the other side
> it is not specified that it is not allowed. I think it should not be
> allowed since it is not clear when the value will be recalculated
> because a node cannot take itself as dependent. E.g. an insert or delete
> will recalculate the value even if the user has updated the value (this
> must also happen if an insert happens in another instance). This could
> be a problem for implementation which isolates the creating of
> dependencies between instances.
> Best regards,
> David
Received on Wednesday, 13 June 2007 19:04:33 UTC

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