void listAllPaymentTypes()
        {
            pType          = new cPaymentTypeOperations();
            pType.sqlQuery = "select explanation from PAYMENTTYPE";
            pType.showPaymentTypes();

            fillLView();
        }
        void fillCBoxPType()
        {
            pType = new cPaymentTypeOperations();
            pType.sqlQuery = "select explanation as 'Payment Type' from PAYMENTTYPE";
            pType.showPaymentTypes();

            CBoxPType.DataSource = pType.dataTable;
            CBoxPType.DisplayMember = "Payment Type";
        }