// GET: 客戶銀行資訊
        public ActionResult Index(string sortOrder, string currentSort, string searchString = null)
        {
            ViewBag.客戶IdSort = String.IsNullOrEmpty(currentSort) ? "客戶Id" : "";
            ViewBag.帳戶名稱Sort = currentSort == "帳戶名稱" ? "" : sortOrder;
            ViewBag.帳戶號碼Sort = currentSort == "帳戶號碼" ? "" : sortOrder;
            ViewBag.銀行代碼Sort = currentSort == "銀行代碼" ? "" : sortOrder;
            ViewBag.銀行名稱Sort = currentSort == "銀行名稱" ? "" : sortOrder;
            var 客戶銀行資訊 = db客戶銀行.searchALL(sortOrder, currentSort, searchString);

            return(View(客戶銀行資訊.ToList()));
        }