Hi Matt,
I did get it right but i think my answer was not that clear. You can still
use the changeSelection event and write a converter which gets the model
value and returns that:
selectBox.bind("selection", ourModel, "selection", {
converter : function(data) {
return data[0].getModel();
}});
Regards,
Martin
Noggin182 wrote:
>
> Sorry I think you missed what I meant.
> We don't listen to the event ourselves, we use databinding to bind from
> the model to the ui and then back again.
>
> Our code is quite complicated but it basically does something like this:
>
> qx.data.SingleValueBinding.bind(ourModel,
> "selection",
>
> selectBox,
> "modelSelection");
>
> qx.data.SingleValueBinding.bind(selectBox,
> "modelSelection",
>
> ourModel,
> "selection");
>
> The first binding works fine but the second doesn't as it looks for the
> changeModelSelection event
>
> Hope that clears things up,
> Matt
>
> MartinWittemann wrote:
>> Hi,
>> just use the changeSelection event because it is fired exactly on the
>> same
>> times. Thats why we decided not to supply such an event.
>> Best,
>> Martin
>>
>>
>> Noggin182 wrote:
>>> This is good! I was working on something similar in our code base. One
>>> problem though, there is no changeModelSelection event so we can't use
>>> the databinding in the reverse way, would this be easy to add?
>>>
>>> Thanks,
>>> Matt
>>>
>>> MartinWittemann wrote:
>>>> Hello Christian,
>>>> take a look at revision 20020. :)
>>>> Cheers,
>>>> Martin
>>>>
>>>>
>>>>
>>>> panyasan wrote:
>>>>> To make more clear what I mean: I have a data store that loads the
>>>>> values
>>>>> for
>>>>> a data record and is then bound to this form:
>>>>>
>>>>> http://www.nabble.com/file/p25341125/Bild%2B2.png Bild+2.png
>>>>>
>>>>> works great. Now I want to exchange the first TextField ("Reference
>>>>> Type")
>>>>> with a SelectBox. The ListItem labels will be show extended and
>>>>> translated
>>>>> information on all the reference types that can be chosen.
>>>>>
>>>>>
>>>>> panyasan wrote:
>>>>>> Hello Martin,
>>>>>>
>>>>>> thank you for your quick reply. I would love to see this
>>>>>> functionality
>>>>>> as
>>>>>> soon as possible, so I vote for it -anyone else? This would make
>>>>>> using
>>>>>> SelectBox-like widgets (also RadioGroup) so much easier to use with
>>>>>> forms.
>>>>>> You bind the form to a model, and, just like TextField widgets, they
>>>>>> show
>>>>>> the value that is in the model, and update the model when the
>>>>>> selection
>>>>>> changes. Because I generate forms on-the-fly in my application, this
>>>>>> would
>>>>>> enormously ease my work - as opposed to having to bind the selection
>>>>>> widgets manually.
>>>>>>
>>>>>> But even the second option is not fully clear to me. It would entail
>>>>>> a
>>>>>> lot
>>>>>> of custom code, wouldn't it - storing the "value" in the "userData"
>>>>>> (since
>>>>>> the 'value' property is still deprecated in the current trunk), and
>>>>>> then
>>>>>> iterating over the ListItems to select the matching one? Or am I
>>>>>> still
>>>>>> not
>>>>>> getting the point. A short example would be wonderful.
>>>>>>
>>>>>> Thank you - as usual - for your great work on databinding - I have
>>>>>> completely rewritten my app in order to use it ;-)
>>>>>>
>>>>>> Christian
>>>>>>
>>>>>>
>>>>>>
>>>>>> Martin Wittemann wrote:
>>>>>>> Hello Christian,
>>>>>>> thats a good point. The form controller still uses the selection for
>>>>>>> widgets
>>>>>>> like the SelectBox. But it could use the new model property now if
>>>>>>> available. Maybe I can get the code changed today and it will land
>>>>>>> in
>>>>>>> the
>>>>>>> 0.8.3 release. (http://bugzilla.qooxdoo.org/show_bug.cgi?id=2754)
>>>>>>> But anyway, you can always set up the binding yourself without the
>>>>>>> form
>>>>>>> controller and bind the model. Take a look at this tread some time
>>>>>>> ago
>>>>>>> where
>>>>>>> I bound a RadioGroup. As SelectBox and RadioGroup do use the same
>>>>>>> interface
>>>>>>> you can just use that code if you need it.
>>>>>>> Best,
>>>>>>> Martin
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> panyasan wrote:
>>>>>>>> Hello (Martin),
>>>>>>>>
>>>>>>>> I have seen a couple of commits concerning the new selection
>>>>>>>> support
>>>>>>>> for
>>>>>>>> the
>>>>>>>> form and am eager to put it to use. But I couldn't yet figure out
>>>>>>>> how
>>>>>>>> to
>>>>>>>> do
>>>>>>>> it.
>>>>>>>>
>>>>>>>> Let's say, in a multi-language application, you have a SelectBox
>>>>>>>> that
>>>>>>>> displays a couple of choices in the selected language of the
>>>>>>>> application.
>>>>>>>> The SelectBox is part of a form, managed by a form controller,
>>>>>>>> which
>>>>>>>> bind
>>>>>>>> the form to a model. The model contains a value for the selected
>>>>>>>> item
>>>>>>>> in
>>>>>>>> the
>>>>>>>> select box which is language-neutral. How do I have to set up the
>>>>>>>> SelectBox
>>>>>>>> that the model, when changed, will automatically preselect the
>>>>>>>> corresponding
>>>>>>>> item in the SelectBox? As said before, binding to the label is not
>>>>>>>> an
>>>>>>>> option
>>>>>>>> because the "value" has to be language-neutral - the label is
>>>>>>>> "decoration",
>>>>>>>> not "data".
>>>>>>>>
>>>>>>>> Thanks,
>>>>>>>>
>>>>>>>> Christian
>>>>>>>> --
>>>>>>>> View this message in context:
>>>>>>>> http://www.nabble.com/New-Form-Selection-Behavior-tp25336649p25336649.html
>>>>>>>> Sent from the qooxdoo-devel mailing list archive at Nabble.com.
>>>>>>>>
>>>>>>>>
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>>>>>>> --
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>>>>> Sent from the qooxdoo-devel mailing list archive at Nabble.com.
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