After clicking button, Autocomplete textbox should not be empty in MVC3

My controller:


public ActionResult AutocompleteAsync(string term)


{

var suggestions = from s in Adm.states


select s.state_name;

var namelist = suggestions.Where(n => n.ToLower().StartsWith(term.ToLower()));


return Json(namelist, JsonRequestBehavior.AllowGet);


}




after clicking submit button textbox should not be empty.

Thanks.