object mapping Archives - Page 2 of 2

In this part I will be showing how Automapper uses flattening by convention.

If we look at our OrderDto we will see that it has a IEnumerable of OrderItemsDto and also something called OrderNumber. This is the type of object we want to send to our presentation layer.

 public class OrderDto
    {
        public string CustomerName { get; set; }
        public decimal Total { get; set; }
        public string OrderNumber { get; set; }
        public IEnumerable<OrderItemsDto> LineItems { get; set; }
    }

public class OrderDto

{

public string CustomerName { get; set; }

public decimal Total { get; set; }

public string OrderNumber { get; set; }

public IEnumerable<OrderItemsDto> LineItems { get; set; }

}

… Read the rest

Recently I gave a talk on Automapper in Ottawa .Net Community, so I though I would post the main ideas of the presentation here also.

The demo was based on an Order System where there were just 3 tables/classes, “Order”, “Customer” and “OrderItems”

From the diagram we can see that a Customer has a Bio and if we pull out all the customer from a repository and display it, we may have some of them whom are missing the Bio.

Here is the code of how we are mapping our domain objects to a Dto or ViewModel, we are basically just passing the data to the View to render

//customer dto
public class CustomerDto
    {
        public string Bio { get; set; }
        public string Name { get; set; }
    }

//Controller
public ActionResult Index()
        {
            var customers =

… Read the rest

Automapper: Mapping objects Part 2 of 7 (Flattening by Convention)

Automapper: Mapping objects Part 1 of 7 (NullSubstitution)

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