Question

I have Autocomplete attached to different types of input box. It loads items whenever user start type in anything which is fine. But,in one of the textarea, I want to disable autocomplete by default, and enable it if user type in “@”. How to do this?

Answer 1

This will do the trick:

$('textarea').autocomplete({
    source: availableTags
})
    .autocomplete('disable')
    .on('keypress', function(event) {
        //Detect whether '@' was keyed.
        if (event.shiftKey && event.keyCode === 64) {
            $(this).autocomplete('enable');
            return false;
        }
    });

Live Example – http://jsfiddle.net/tj_vantoll/rRu4A/3