如何从自动完成而不是文本发布值？

This is my C# Code:

这是我的C#代码:

public JsonResult FillUsers(string term)
    {
        var Retailers = from us in db.Users
                        join pi in db.UserPersonalInfoes on us.ID equals pi.UserID into t
                        from rt in t.DefaultIfEmpty()
                        where us.Status == true
                        select new
                        {
                            ID = us.ID,
                            Username = us.Username + ":( " + (rt == null ? String.Empty : rt.FirstName) + " )"
                        };

        List<string> UsersList;
        UsersList = Retailers.Where(x => x.Username.Contains(term)).Select(y => y.Username).Take(10).ToList();

        return Json(UsersList, JsonRequestBehavior.AllowGet);
    }
public JsonRe