Rails - May 2008 - allow selecting only two items in multiple selection box?

Hi,

I''d like to use ''selection'' with :multiple=>true
but allow selecting
only two items from the list. is there any easy way in RoR or I have
to use some javascript testing with onChange event?

Thanks very much
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If you want to give the user feedback immediately when he selects a 
second option, you need to use Javascript. It can on the other hand be 
generated by RoR using RJS (called by a remote_function), but it it 
probably easier just to put it directly in the onchange-handler as you 
suggested.
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On 5/22/08, pepa007
<richter.josef-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
>  I''d like to use ''selection'' with
:multiple=>true but allow selecting
>  only two items from the list. is there any easy way in RoR or I have
>  to use some javascript testing with onChange event?
http://www.webtricks.com/sourcecode/source_code.cfm?CodeID=16

(3 seconds on google)


-- 
Greg Donald
http://destiney.com/

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