[Rt-devel] Hierarchal custom field controls

[Chris Adams]

I like the concept behind the multiple select controls for nested  
custom field controls but setting display:none on an optgroup doesn't  
appear to be supported by any browser other than Firefox. It looks  
like this could probably be handled by something hackish (e.g. moving  
option elements in and out of the select rather than simply trying to  
hide them) but I've been questioning the basic UI design since the  
select-box approach gets a little unwieldy once you have more than a  
few options, as is the case for our department list at work.

I was playing around with a basic YUI nested menu approach:

<http://gist.github.com/60961>

or a tree (which would - with a little work - also make it possible to  
have a parent checkbox for an entire branch) something like this:

<http://developer.yahoo.com/yui/examples/treeview/tasklist.html>

The question I keep coming back to, however, is whether it might be  
better to rethink the traditional UI controls and use something like a  
display list and an auto-completing text field since it's generally  
the case that the selected values are a small fraction of the  
available choices and this would save screen real-estate and make  
selection a little faster with a big list of options.

Has anyone else been working on anything like this?

Chris
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