Mapping two source object to three object

Question

I have two source object:

public class Book
{
    public int Id {get;set;}
    public IList<Unity> Unities {get;set;}
}

public class Unity
{
    public int Id {get;set;}
    public string Title {get;set;}
}

and three destination object:

public class DtoBook
{
    public int Id {get;set;}
    public DtoOrganization Organization {get;set;}
}

public class DtoOrganization
{
    public int Id {get;set;}
    public IList<DtoUnity> Unities {get;set;}
}

public class DtoUnity
{
    public int Id {get;set;}
    public string Title {get;set;}
}

I'd like to map the two source objects Book and Unity to the three dto objects but doesn't exist an Organization source object. How can I do it with Automapper?

Thanks!!!

Post my actual code Automapper code:

public static void Configure()
{
    Mapper.Reset();

    Mapper.CreateMap<Unity, Model.Organization>();

    Mapper.CreateMap<Book, Model.Manifest>()
            .ForMember(x => x.Version, y => y.UseValue("1.1"));                

    Mapper.AssertConfigurationIsValid();
}

public static Model.Manifest Map(Book book)
{
    Configure();
    Model.Manifest dtoManifest = Mapper.Map<Book, Model.Manifest>(book);
    return dtoManifest;
}

I found an answer which response to my question: http://stackoverflow.com/questions/11633021/automapper-expression-must-resolve-to-top-level-member Thanks — Cisco Cabe, May 26 '14 at 06:59

score 0 · Answer 1 · answered May 23 '14 at 08:07

If I didn't miss anything this could look like this (it's a easy way if you don't want to learn how AutoMapper works):

class Program
{
    static void Main(string[] args)
    {
        var sampleBook = new Book { 
            Id = 1, 
            Unities = new List<Unity> { 
                new Unity { Id = 2, Title = "Title of unity" }, 
                new Unity { Id = 3, Title = "Title of unity" } 
            } 
        };

        var ourBookDto = new DtoBook
        {
            Id = sampleBook.Id,
            Organization = new DtoOrganization
            {
                Id = 666, // i don't know from where do you want to obtain this id
                Unities = sampleBook.Unities.Select(u => new DtoUnity { 
                    Id = u.Id,
                    Title = u.Title
                }).ToList()
            }
        };

        Console.ReadLine();
    }
}

But this may be a little dirty if your classes become more complex so instead try to use AutoMapper.

I want to use Automapper and I learned it but I didn't can to do this mapping with Automapper. — Cisco Cabe, May 23 '14 at 08:20
I posted it but the question is that I don't know how I can map DtoOrganization which not exists as source. Thanks! — Cisco Cabe, May 23 '14 at 09:20

Mapping two source object to three object

1 Answers1