public List <Customer> GetCustomerList()
        {
            DataAccessLayer.DataAccess data = new DataAccessLayer.DataAccess();
            List <Customer>            lst  = data.GetCustomerList();

            return(lst);
        }
        public List <Employee> GetEmployeeList()
        {
            List <Employee> lst = new List <Employee>();

            DataAccessLayer.DataAccess data = new DataAccessLayer.DataAccess();
            lst = data.GetEmployeeList();
            return(lst);
        }