WP Sunshine

A custom field for Gravity Forms that will search any selected post types as the user types into the field and show the results below the field. Set which post types, how many results, and customize the display format of the results. Lots of unique CSS classes included for full custom styling!
This plugin was created as a way to help customers find documentation articles before submitting a support ticket. The goal is to reduce the number of support tickets submitted by helping customers find and answer themselves. Maybe you can find other uses as well!
<a href="https://www.wpsunshine.com/plugins/gravity-forms-search-field/?utm_source=wordpress.org&utm_medium=link&utm_campaign=gravityforms-search-readme" rel="nofollow ugc">Documentation</a>

Search Field for Gravity Forms

Searches selected post types after a user types, displaying results below field.

B Hays

Limit the display of product fields with Gravity Forms based on the number of entries.
Currently only works for single product fields with a quantity defined. Limit does not count against entries in the trash.
Great for event registration or product quantity limiting.
Built with Better Inventory with Gravity Forms from Gravity Wiz 
http://gravitywiz.com/better-inventory-with-gravity-forms/

Gravity Forms Quantity Limiter

Limit the display of product fields with Gravity Forms based on the number of entries.

Search Field for Gravity Forms vs Gravity Forms Quantity Limiter