public CustomerOperations(ICustomerEmployeeView view, DataAccessCustomer customerData)
        {
            this.view         = view;
            this.customerData = customerData;

            //  DataAccessCustomer customer = new DataAccessCustomer();
            var customers = customerData.RetrieveCustomer();

            this.view.LoadCustomer(customers);

            DataAccessEmployee employees = new DataAccessEmployee();
            var employee = employees.RetrieveEmployee();

            this.view.LoadEmployee(employee);
        }
        public IList <Customer> RetrieveCustomerList()
        {
            DataAccessCustomer dal = new DataAccessCustomer();

            return(dal.RetrieveCustomer());
        }