public ActionResult ChangeNegativeFormat()
        {
            ChangeNegativeFormatViewModel vm = new ChangeNegativeFormatViewModel();

            vm.FormatList.Add(0, "Parenthesis: ($100.00)");
            vm.FormatList.Add(1, "Negative: -$100.00");
            return(View(vm));
        }
        public async Task <ActionResult> ChangeNegativeFormat(ChangeNegativeFormatViewModel vm)
        {
            if (!ModelState.IsValid)
            {
                vm.FormatList.Add(0, "Parenthesis: ($100.00)");
                vm.FormatList.Add(1, "Negative: -$100.00");
                return(View(vm));
            }
            else
            {
                var user = db.Users.Find(User.Identity.GetUserId());
                if (!(vm.FormatSelection < 0 || vm.FormatSelection > 1))
                {
                    user.NegFormatId = vm.FormatSelection.Value;
                }
                db.Entry(user).State = EntityState.Modified;
                db.SaveChanges();
                await ControllerContext.HttpContext.RefreshAuthentication(user);

                return(RedirectToAction("Index"));
            }
        }