How to auto submit only after typing at least three character in view exposed filter I have a view with exposed filters using AJAX and auto-submit feature.

The problem is it reacts to every char I type but what I want is that when a user type at least three character in the text field then it should auto submit and display search result. But Cant figure out how to implement this. Please help
Attach custom_form_validate for that form using
form_alter
Do what ever you want in this custom_validation.
Reference