To do this, you would need some kind of inventory system which Gravity Forms does not have. A modification of this tutorial might work for you, but it is outside of what we can provide via support:
http://gravitywiz.com/better-inventory-with-gravity-forms/
You could also create some custom database table and use gform_pre_render or similar and our post submission hooks to update your table.
A simple way of doing it would be to not allow duplicates on the field, but that wouldn't remove them from being selected.
Posted 12 years ago on Friday March 22, 2013 |
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