Dynamic Combobox

Hi list,
        I started to play around with Seaside yesterday to create a small site
and I must say I'm amazed by the framework; so the first thing I have to
say is congratulations for the excellent work you've done and thanks for
putting it available to the comunity.

Now, regarding the site I must build, so far I've managed to create it,
build some forms, define tasks and so forth. Now I need to perform some
dynamic changes in the page depending on the user selection, so I loaded
the scriptaculous extension. Now, I'm kind of lost in how to change a
form control contents. The situation is this: there are 3 options that
the user can select and I want to give the user the chance to indicate
his preference order. The form looks like:

First choice: <Combobox 1>
Second choice: <Combobox 2>

So, I would like that <Combobox 1> display the three choices and that
<Combobox 2> only contains the other two available choices. Each time
the user selects a new choice in <Combobox 1>, <Combobox 2> should be
updated to reflect this.

I know that I can get the change event by using

        html select
                ...
                onChange: (html updater...

but I couldn't find a way to change <Combobox 2> contents.

Any hints would be really appreciated.

Thanks,
         Andrés

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Well, Combobox2 rendering should depend on some state which is set in
Combobox1s callback:

html select
    ...
    callback: [:a | self updateCombobox2State: a];
    onChange: (html updater
        id: combobox2Id;
        callback: [:render | self renderCombobox2: render]).

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Thanks for the quick response! I wasn't aware that

        callback: [:render | self renderCombobox2: render]

would force the refresh of the combo contents. I'll try right away.

Thanks again,
              Andrés

Andrius Paulavicius escribió: _______________________________________________
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You could also check out some ready made components that ship with
Scriptaculous, for example SUBrowser and SUTieredList (has an example
on the class side).

Cheers,
Lukas

--
Lukas Renggli
http://www.lukas-renggli.ch
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Thanks Adrius and Lukas, it works like a charm (at least the combo stuff :))

Thanks again,
              Andrés

Lukas Renggli escribió: _______________________________________________
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