In Chapter 5, Implementing a Three-layer WCF Service, we created a business domain object (BDO) project to hold the intermediate data between the data access objects and the service interface objects. In this section, we will also add such a project to the solution for the same purpose.
In the Solution Explorer, right-click on the LINQNorthwind solution.
Select Add | New Project... to add a new class library project named
NorthwindBDO.Rename the
Class1.csfile toProductBDO.cs. This will also change the class name and all related files in the project.Add the following properties to this class:
ProductIDProductNameQuantityPerUnitUnitPriceDiscontinuedUnitsInStockUnitsOnOrderReorderLevelRowVersion
The following is the code list of the ProductBDO class:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace NorthwindBDO
{
public class ProductBDO
{
public int ProductID...