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From "Bob Harner (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TAP5-1628) Have Submit documentation explicitly state when the disabled attribute is evaluated
Date Thu, 08 Sep 2011 10:41:08 GMT

    [ https://issues.apache.org/jira/browse/TAP5-1628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13100206#comment-13100206
] 

Bob Harner commented on TAP5-1628:
----------------------------------

Okay, I get it. How about the following:

     If true, then the field will render out with a disabled attribute
     (to turn off client-side behavior). When the form is submitted
     the bound value is checked again and, if true, the field's
     value is ignored (not even validated) and the component's
     events are not fired.

> Have Submit documentation explicitly state when the disabled attribute is evaluated
> -----------------------------------------------------------------------------------
>
>                 Key: TAP5-1628
>                 URL: https://issues.apache.org/jira/browse/TAP5-1628
>             Project: Tapestry 5
>          Issue Type: Improvement
>          Components: documentation
>    Affects Versions: 5.3
>            Reporter: Steve Eynon
>            Assignee: Bob Harner
>            Priority: Trivial
>              Labels: submit
>             Fix For: 5.3
>
>
> The "disabled" attribute for a Submit button is currently loosely documented as :
> " ... Further, a disabled field ignores any value in the request when the form is submitted."
> http://tapestry.apache.org/5.3/apidocs/org/apache/tapestry5/corelib/components/Submit.html
> I would like it to be more explicit, along the lines of:
> " ... Further, if bound, the disabled attribute is re-evaluated upon form submission
and the "selected" event is only fired should it evaluate to 'false'."
> For this stumped us in work today for a good half hour - it was because we weren't @Persist'ing
our disabled attribute. Our expression was t:disabled="!myObject" and of course 'myObject'
because null / false on form submission. As our submit button was enabled and the form submitted,
we saw no reason for the event not to fire.

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