Rails - Aug 2006 - Newbie: populate 2nd dropdown list based on user''s selection in 1st dropdown list

Hi,

I am creating a form that a user can post a message based on his
selection on category and   subcategory. (A category has many
subcategories.)

How do I dynamically populate subcategory dropdown list when user
chooses a category from category dropdown list?

Thanks in advance.

-- 
Best regards,

Ming Ma

On 8/6/06, Ming Ma <mingworld@gmail.com> wrote:
>
> Hi,
>
> I am creating a form that a user can post a message based on his
> selection on category and   subcategory. (A category has many
> subcategories.)
>
> How do I dynamically populate subcategory dropdown list when user
> chooses a category from category dropdown list?
>
> Thanks in advance.
>
> --
> Best regards,
>
> Ming Ma
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>
There''s a couple of solutions to this on http://rails.techno-weenie.net
the
one by technoweenie is the best but I couldn''t seem to find it at the
moment.  The other is by liquid here

http://rails.techno-weenie.net/tip/2006/6/20/cascading_select_boxes_with_rjs_even_on_ie
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