I'm already using the OnEvent component. Still, because the model of the select list i want to update is calculated server-side i need to pass it in json to the client, parse it again in javascript and then update the select input. This does work but i feel that there should be a simpler way of doing this, maybe using zones.

thermus wrote:
I'm a Tapestry novice, but you may want to have a look at http://code.google.com/p/tapestry5-components/ t5components . It allows you to add a mixin to components to respond to an OnChange event with AJAX (see: http://87.193.218.134:8080/t5c-demo/oneventpage this and http://87.193.218.134:8080/t5components/t5c-commons/ref/org/apache/tapestry/commons/mixins/OnEvent.html
this  for details).  You could then change the data model for the other
select component with a tiny bit of JavaScript in the onCompleteCallback
function.
I'm curious how a Tapestry expert would handle it.


HugoPalma wrote:
I have a very usual use where in a form i have two selects, and when the
user selects a value on one the values on the second should be filtered
accordingly.
As the Select component doesn't support ajax out-of.the-box i see myself
forced to implement a lot of plumbing and javascript stuff.

Still, i feel that this kind of use case should be much easier to
implement.
Maybe i'm missing something.
I'd like to hear some ideas about how u would handle this.

Thanks.



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