AutoMapper Map Child Property that also has a map defined

automapper, c#

Solution

You just need to specify that in the mapping:

Mapper.CreateMap<DomainClass, Child>();
Mapper.CreateMap<DomainClass, Parent>()
      .ForMember(d => d.Id, opt => opt.MapFrom(s => s.Id))
      .ForMember(d => d.A, opt => opt.MapFrom(s => s.A))
      .ForMember(d => d.Child, 
                 opt => opt.MapFrom(s => Mapper.Map<DomainClass, Child>(s)));

UPDATE:

For latest Automapper, see answer of @prostynick -

Just map the child using self. Tested with AutoMapper 6.1.1.

    CreateMap<DomainClass, Child>();
    CreateMap<DomainClass, Parent>()
        .ForMember(d => d.Child, opt => opt.MapFrom(s => s));

Problem

I have the following Domain Object: ``` public class DomainClass { public int Id { get; set; } public string A { get; set; } public string B { get; set; } } ``` I have the following two objects that I want to map to: ``` public class Parent { public int Id { get; set; } public string A { get; set; } public Child Child { get; set; } } public class Child { public int Id { get; set; } public string B { get; set; } } ``` I set up the following maps: ``` Mapper.CreateMap<DomainClass, Parent>(); Mapper.CreateMap<DomainClass, Child>(); ``` If I map my object using the following call then the parent.Child property is null. ``` var domain = GetDomainObject(); var parent = Mapper.Map<DomainClass, Parent>(domain); // parent.Child is null ``` I know I can write the following: ``` var domain = GetDomainObject(); var parent = Mapper.Map<DomainClass, Parent>(domain); parent.Child = Mapper.Map<DomainClass, Child>(domain); ``` Is there a way I can eliminate that second call and have AutoMapper do this for me?

Original source

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