the way i do it is by using the webhelpers as follows (using myghty):
from template:
<form ..>
... your select options, etc...
<span id="txtfld"><% h.text_field("res", value=initial_val) %></span>
</form>
<% h.observe_form("your_form_with_select",
url=hurl(controller=..,action=..), update="txtfld", with='value') %>
and from controller:
new_val = request.params.get('val')
return Response(h.text_field("res", value=new_val))
On Apr 27, 6:15 am, Dan <[EMAIL PROTECTED]> wrote:
> Would someone give an example how I could replace a DOM object from the
> controller?
>
> For example, I have an onChange for a <select> that calls a function
> within the controller. The controller function is receiving the
> this[this.selectedIndex].value (an integer). I can pass the int value
> from the <select> onChange into the controller, storing it as c.value.
> I want the controller to take c.value and update the 'value' of a text
> field on the same page without a refresh.
>
> All I can figure out is how to replace an entire element, such as, a
> <div> or the entire <input> by return render_response('some_template')
>
> Thanks!
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