I had a similar problem with bootstraps dropdown , and I needed a built-in (angular) multiple-selection implementation (basically, I would like to replace the selected one, since it depends on jquery). Therefore, I wrote it myself.
Here is the plunker showing the dropdown menu:
http://plnkr.co/edit/lxewJUN8li9YQj9h1cIz?p=preview
It has Select All support if you need something similar.
Hope this helps.
NOTE: For some reason, it only works with an unstable branch.
ganaraj
source share