public DataTable Search_CustomerInformationBLL(Customer aCustomer, OrderDetails aOrderDetails) { DataTable dt = null; if (aCustomer.ID == 0 && aCustomer.ContactNo == "" && aCustomer.Address == "" && aCustomer.name == "" && aOrderDetails.IssueDate == "" && aOrderDetails.DeliveryDate == "") { return(dt); } else { SearchDAL aSearchDAL = new SearchDAL(); dt = aSearchDAL.Search_CustomerInformationDALL(aCustomer, aOrderDetails); return(dt); } }