# Collection\_select

**URL:** <https://www.ruby-forum.com/t/collection-select/145802>\
**Category:** Rails\
**Created:** [August 14, 2008, 3:39am UTC](https://www.ruby-forum.com/t/collection-select/145802 "2008-08-14T03:39:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jturney](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/e99b99/32.png) [@jturney](https://www.ruby-forum.com/u/jturney)\
**Post date:** [August 14, 2008, 3:39am UTC](https://www.ruby-forum.com/t/collection-select/145802/1 "2008-08-14T03:39:40Z")

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Hey!

Anybody know how to preselect multiple items in a collection\_select?

\<%= collection\_select(:category, :id, @categories, :id, :name, options  
={:prompt=\>"-Hold Ctrl for many-"}, :multiple=\>“multiple”,  
:class=\>“tags\_list”, :id=\>“search\_tags”) %\>

Thanks!

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<div class="post-metadata">

**Author:** ![jturney](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/e99b99/32.png) [@jturney](https://www.ruby-forum.com/u/jturney)\
**Post date:** [August 15, 2008, 6:45pm UTC](https://www.ruby-forum.com/t/collection-select/145802/2 "2008-08-15T18:45:12Z")

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Take a look at the following screencast - it really helped me  
understand how to do multiple selection lists…

[http://www.rubyplus.org/episodes/81](http://www.rubyplus.org/episodes/81)

On Aug 13, 9:39 pm, Justin To [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)