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From "Rice Yeh" <rice...@gmail.com>
Subject Re: modifying form definition at runtime
Date Mon, 19 Mar 2007 01:21:55 GMT
On 3/19/07, Steinar Jonsson <sjonsson@online.no> wrote:
>
> On Sun, 2007-03-18 at 16:45 +0800, Rice Yeh wrote:
> > Hi,
> >   Is it possible to modify form definition at runtime?
>
> Yes, and as you see from other answers there are different ways it can
> be done.
>
> I did an application once where the form definition (and binding and
> template) was generated at runtime.
>
> This was for a use case where forms had a certain structure, but what
> fields they contained was not known until runtime.
>
> The controller (javaflow) would create a java object that contained
> description of the form. Then, this object was fed into pipelines that
> generated the form XMLs from jx templates. Those templates contained all
> the static parts of the forms, with relatively simple jx directives to
> insert the dynamic parts according to the description object data.


With this way, the whole page will be rendered again. I want to use cocoon's
ajax (browser update stuff) to update just the changed widgets through the
fd:action's on-action event.


I remember struggling a lot to get all the pieces together, and suspect
> it ended up being unnecessarily complex. It eventually worked, though.
>
> Regards
> Steinar Jonsson
>
>
>
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