# Collapsable/expandable select\_tag helper for trees?

**URL:** <https://www.ruby-forum.com/t/collapsable-expandable-select-tag-helper-for-trees/131141>\
**Category:** Rails\
**Created:** [March 6, 2008, 12:18pm UTC](https://www.ruby-forum.com/t/collapsable-expandable-select-tag-helper-for-trees/131141 "2008-03-06T12:18:42Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![cmaxvv](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/85f322/32.png) [@cmaxvv](https://www.ruby-forum.com/u/cmaxvv)\
**Post date:** [March 6, 2008, 12:18pm UTC](https://www.ruby-forum.com/t/collapsable-expandable-select-tag-helper-for-trees/131141/1 "2008-03-06T12:18:42Z")

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I’ve been looking around for a select helper that works like the Windows  
Explorer ‘folder’ pane, ie for navigating a tree: a node with children  
has a plus icon which expands the node to show its children when clicked  
on, and which then turns to a minus icon which collapses the node, etc.

I can’t seem to find one, can anyone point me to one please?