# Cascading select boxes using rjs

**URL:** <https://www.ruby-forum.com/t/cascading-select-boxes-using-rjs/117737>\
**Category:** Rails\
**Created:** [October 19, 2007, 8:07pm UTC](https://www.ruby-forum.com/t/cascading-select-boxes-using-rjs/117737 "2007-10-19T20:07:25Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![brian](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/97f17d/32.png) [@brian](https://www.ruby-forum.com/u/brian)\
**Post date:** [October 19, 2007, 8:07pm UTC](https://www.ruby-forum.com/t/cascading-select-boxes-using-rjs/117737/1 "2007-10-19T20:07:25Z")

</div>

Has anyone seen an example of how to populate drop-downs based on  
selections made elsewhere?

I see several blog posts pointing to a supposedly good example from  
Rick Olsen on railsweenie, but the links seem to be broken:

> **[RailsNotes — The Ruby on Rails guides you wished you had.](https://railsnotes.xyz/)**
>
> RailsNotes 🟥 is a collection of the Ruby on Rails guides you wished you had, when you were first starting out. We have interesting Ruby on Rails articles for topics like Hotwire, Stimulus, ActionMailer, Databases, Deployment and more. Whether you're...

Thanks!