Map nested collection results in a list with one empty class instance instead of empty list

[alessandrosaitta]

Hi, I don't know if I'm missing something but this behaviour seems strange to me. I take one of slapper examples:

public class Customer
{
    public int CustomerId;
    public string FirstName;
    public string LastName;
    public IList<Order> Orders;
}

public class Order
{
    public int OrderId;
    public decimal OrderTotal;
    public IList<OrderDetail> OrderDetails;
}

public class OrderDetail
{
    public int OrderDetailId;
    public decimal OrderDetailTotal;
}

I change the data of the example to not have an OrderDetail

var dictionary = new Dictionary<string, object>
    {
        { "CustomerId", 1 },
        { "FirstName", "Bob" },
        { "LastName", "Smith" },
        { "Orders_OrderId", 1 },
        { "Orders_OrderTotal", 50.50m },
        { "Orders_OrderDetails_OrderDetailId", DBNull.Value },
        { "Orders_OrderDetails_OrderDetailTotal", DBNull.Value }
    };

var list = new List<IDictionary<string, object>> { dictionary };

// Act
var customers = Slapper.AutoMapper.Map<Customer>(list);

Now I expect to have a Customer with 1 Order and either an empty list of OrderDetails or a null OrderDetails object but instead I get an OrderDetails list with one OrderDetails instance with both OrderDetailId and OrderDetailTotal equal to 0. Am I missing something? Is there a way that I can use to achieve the result? In my project I have some complex object with nested list where I have this problem, could you please help me?

Manny thanks, Alessandro