using System; using System.Data; using System.Configuration; using DSWeb.Models; using DSWeb.EntityDA; namespace DSWeb.Invoice { public class InvoiceBookManager { private static InvoiceBookManager invoiceBookManger = new InvoiceBookManager(); private InvoiceBookManager() { } public static InvoiceBookManager Instance() { return invoiceBookManger; } public InvoiceBookEntity GetCurrentInvoiceBook() { InvoiceBookDA invoiceBookDA = new InvoiceBookDA(); InvoiceBookEntity invoiceBookEntity = new InvoiceBookEntity(); return invoiceBookEntity; } } }