private static void ProductTest() { ProductManager productManager = new ProductManager(new EFProductDal()); foreach (var item in productManager.GetAll()) { Console.WriteLine(item.ProductId + " " + item.ProductName + " " + item.UnitPrice); } Console.WriteLine("-----------------------"); foreach (var item in productManager.GetAllByCatergoryId(2)) { Console.WriteLine(item.ProductId + " " + item.ProductName + " " + item.UnitPrice); } Console.WriteLine("-----------------------"); foreach (var item in productManager.GetByUnitPrice(40, 100)) { Console.WriteLine(item.ProductId + " " + item.ProductName + " " + item.UnitPrice); } }