When you connect your database with the ajaxautocomplete you are able to select autocomplete for each column of your database. You can select only he column which you want to make available for searching to your clients.
Hi, if I've understood Jeff's question then I think I have the same question and this what was meant was autocomplete will search the database and present the options, but it is possible to continue to enter a value in the input field that is not in the autocomplete list. I think Jeff was asking if there was a way to ensure that only values presented by the autocomplete list can be entered into the input field and NOT any other value - the user HAS to pick one of the autocomplete suggestions.
I understand your question.You need to achieve restriction in order to make the autocomplete to pickup like dropdown menu when typing and not any other value that is contained within the database to be selectable.Unfortunately this is not possible , but i will discuss your idea with our developers team.