Derek Hohls wrote:
> Is it possible to set up the binding and display for a widget so that
> it is styled differently depending on whether or not a value was set
> for it *prior* to displaying the form?
>
> I would like to use this approach for a field containing a database
> field index value - if its blank when the form is displayed, the user
> must be able to fill it in (and *must* in fact fill it in);
This just means that every field in the form is required="true", right?
> but if a value
> already exists, then the field should be displayed in "read only"
> only mode; preferably just as a text string, [in worse case, it
> would also be OK if the field was not displayed at all, but perhaps
> still present in the form as a hidden field).
You should be able to do this by extending the XSL that transforms the
field instances to HTML. Something like add an xsl:template that
matches fi:field[string-length(fi:value > 0)] which then outputs the
value as text.
Another possibility might be to add an fd:on-value-changed handler to
the fields that changes the widget state to OUTPUT when the value is not
empty.
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