public async Task <ActionResult> Index()
        {
            var retailenv = (await _retailenvService.GetRetailEnvironment()).Items;
            var model     = new RetailEnvironmentListViewModel
            {
                RetailEnvironment = retailenv
            };

            return(View(model));
        }
        public async Task <ActionResult> Index()
        {
            var customers  = (await _customerService.GetCustomer()).Items;
            var salesmans  = (await _salesmanService.GetSalesman()).Items;
            var retailenvs = (await _retailEnvService.GetRetailEnvironment()).Items;
            var model      = new CustomerListViewModel
            {
                Customers = customers,
                Salesmen  = salesmans,
                RetailEnvironmentLists = retailenvs
            };

            return(View(model));
        }