public override void Display()
        {
            base.Display();
            var bookIdList = LoanAdministration.MakeBookIDList();

            LoanAdministration.Instance.ReturnMany(bookIdList);
            StandardMessages.PressAnyKey();
            StandardMessages.PressKeyToContinue();
            Program.NavigateBack();
        }
        public override void Display()
        {
            base.Display();
            string persid     = StandardMessages.GetInputForParam("Person ID");
            var    bookIdlist = LoanAdministration.MakeBookIDList();

            LoanAdministration.Instance.BorrowMany(bookIdlist, persid);
            StandardMessages.PressAnyKey();
            StandardMessages.PressKeyToContinue();
            Program.NavigateBack();
        }