Are you using T5.2? I remember T5.2 has supported partial form update.
DH
----- Original Message -----
From: "Norman Franke" <nor...@myasd.com>
To: "Tapestry users" <users@tapestry.apache.org>
Sent: Wednesday, September 29, 2010 6:33 AM
Subject: Re: T5: Zone Update Part of Form?
> Well, I'm not sure FormInjector will work without a lot of work. I
> need to pass in the value of the one field and it's not clear how do
> to that. The activate() method doesn't take any parameters.
>
> For anyone else who wants to do this, here is what I did:
>
> 1. Make the zone update the ENTIRE form, which is a pain since you
> can't do javascript or CSS hooks by form element ID, one has to use
> class or something else. (Since the IDs change after the AJAZ update.)
>
> 2. Use Form.serialize to save all form values before actually
> triggering the AJAX update.
>
> 3. Listen for Tapestry.ZONE_UPDATED_EVENT on the zone div and re-
> initialize everything in the listener. I had to re-initialize
> listeners on form fields since they are all reset after the update.
> One needs to use $$('select.selectClass)[0] instead of the easier $
> ('selectId') when passing to Event.observe.
>
> 4. In the event listener for the zone update, deserialize the form
> using the handy library:
> http://madchicken.altervista.org/tech/2006/02/prototype-form-serialization-and.html
>
> This appears to behave as desired, although it's rather round-about.
>
> Norman Franke
> Answering Service for Directors, Inc.
> www.myasd.com
>
>
>
> On Sep 28, 2010, at 5:15 PM, Norman Franke wrote:
>
>> FormFragement doesn't work either since it doesn't have a Form in
>> the Environment at AJAX render time.
>>
>> I'll look into FormInjector, although I may just end up updating the
>> entire form, although values entered into the form before the update
>> are lost.
>>
>> Norman Franke
>> Answering Service for Directors, Inc.
>> www.myasd.com
>>
>>
>>
>> On Sep 28, 2010, at 4:55 PM, Howard Lewis Ship wrote:
>>
>>> FormFragment is the way to go, or its cousin, FormInjector.
>>>
>>> On Tue, Sep 28, 2010 at 12:56 PM, Norman Franke <nor...@myasd.com>
>>> wrote:
>>>> I want to update part of a form based on what they enter in the
>>>> first field.
>>>> What's the best way to do this? Apparently, I can't update a zone
>>>> inside a
>>>> form that contains form fields because there is no form in the
>>>> Environment,
>>>> so rendering fails.
>>>>
>>>> Will creating two forms or nested forms work? I tried a
>>>> formfragment, but
>>>> that didn't work either.
>>>>
>>>> Norman Franke
>>>> Answering Service for Directors, Inc.
>>>> www.myasd.com
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>> --
>>> Howard M. Lewis Ship
>>>
>>> Creator of Apache Tapestry
>>>
>>> The source for Tapestry training, mentoring and support. Contact me
>>> to
>>> learn how I can get you up and productive in Tapestry fast!
>>>
>>> (971) 678-5210
>>> http://howardlewisship.com
>>>
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>>
>
>
