Hi, i just recently implemented a similar solution with Jquery
jQuery(document).ready(function() {
jQuery("#county").change(function(){
var county = jQuery(this).val();
// Send the request and update sub category dropdown
jQuery.ajax({
type: "GET",
data: post_string,
dataType: "json",
cache: false,
url: '/kalender/servlet/data?action=municipality&county='
+county,
timeout: 20000,
error: function() {
alert("An error occured: "+county);
},
success: function(data) {
// Clear all options from sub category select
jQuery("select#municipality option").remove();
// Fill sub category select
jQuery.each(data, function(i, j){
var row = "<option value=\"" + j.value + "\">" + j.text
+ "</option>";
jQuery(row).appendTo("select#municipality");
});
}
});
});
});
Whenever the select box with id=county is changed, the select box with id
#municipality is populated.
Not a full solution to your problem, but you get the idea.
/Stefan
2010/7/23 Peter Stavrinides <p.stavrini...@albourne.com>
> > To not lose the field values, submit the form.
> Well thats kind of what I hoped to avoid
>
> > To update just one field, you can create an event and trigger and handle
> > it with a little bit of custom JavaScript and the JSON classes in
> Tapestry.
> If this is the best approach then can someone suggest an example please
>
> Cheers,
> Peter
>
>
> ----- Original Message -----
> From: "Thiago H. de Paula Figueiredo" <thiag...@gmail.com>
> To: "Tapestry users" <users@tapestry.apache.org>
> Sent: Friday, 23 July, 2010 15:49:03 GMT +02:00 Athens, Beirut, Bucharest,
> Istanbul
> Subject: Re: Zoneupdater mixin best practice
>
> On Fri, 23 Jul 2010 07:40:18 -0300, Peter Stavrinides
> <p.stavrini...@albourne.com> wrote:
>
> > Hi all,
>
> Hi!
>
> > To be more specific, I am using the Zoneupdater (code below) with a zone
> > that encloses a form, and the form encloses several textfields. For my
> > use case I only want to target one specific form element but don't know
> > how to avoid the zone refreshing everything. I.e.: As it stands now, any
> > input in other fields in the form is lost whenever I make a selection
> > from the drop down menu due to the zone update, is there another way?
>
> To not lose the field values, submit the form.
>
> To update just one field, you can create an event and trigger and handle
> it with a little bit of custom JavaScript and the JSON classes in Tapestry.
>
> --
> Thiago H. de Paula Figueiredo
> Independent Java, Apache Tapestry 5 and Hibernate consultant, developer,
> and instructor
> Owner, Ars Machina Tecnologia da Informação Ltda.
> http://www.arsmachina.com.br
>
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