AutoMapper How to map nested object from an ObjectId

Question

I am trying to map the ReferralContract.AssessmentId property to Referral.Assessment.Id The below code works but I am sure that there is a cleaner way to do.... Please tell me this is so ;-)

// Destination classes
public class Referral
{
    public Referral()
    {
        Assessment = new Assessment();
    }

    public int Id { get; set; }
    public Assessment Assessment { get; set; }
}

public class Assessment
{
    public int Id { get; set; }
}

// Source Class
public class ReferralContract
{
    public int Id { get; set; }
    public int AssessmentId { get; set; }
}

The Automapper mapping I am using is

Mapper.CreateMap<ReferralContract, Referral>()
      .ForMember(x => x.Assessment,
          opt => opt.MapFrom(scr => new Assessment { Id = scr.AssessmentId }));

I have a similar situation with a DateTime object.Date mapping to/from an object.SubClass.Date value...I'm getting an 'Unable to cast object of type 'System.DateTime' to type 'Object.SubClass' error but have been attempting the exact same mapping init...any sugguestions? — beauXjames
– beauXjames, Commented Aug 28, 2012 at 15:40

Jimmy Bogard · Accepted Answer · 2010-04-14 13:51:18Z

3

For now, that's the cleanest way to go. AutoMapper's design is not optimized for these reverse-mapping scenarios, but that's something I'm looking at for future versions.

answered Apr 14, 2010 at 13:51

Jimmy Bogard

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