AutoMapper 在子类中使用父类映射

Question

I've got two parent classes

class Settings
{
     public Field
}

and

class SettingsDb
{
    public  FieldDB
}

and Field mapped width FieldDB by ForMember expression

CreateMap<SettingsDb, Settings>()
                 .ForMember(dest => dest.Field,
                 opt => opt.MapFrom(src => some lambda with src.FieldDb));

I also have two child classes

class AdminSettings : Setting
{
inherits Field
}

class AdminSettingsDb : SettingDb
{
inherits FieldDb
}

how can I map AdminSettings with AdminSettingsDb without doing ForMember again for this inherited fields?

CreateMap<AdminSettings, AdminSettingsDb>(); 

now this fields are empty after mapping

Answer 1

Simpler solution

   CreateMap<BaseEntity, BaseDto>()
       .ForMember(dest => dest.SomeMember, opt => opt.MapFrom(src => src.OtherMember));

    CreateMap<DerivedEntity, DerivedDto>()
        .IncludeBase<BaseEntity, BaseDto>();

Answer 2

Include the child classes in the mapping of the parent.

CreateMap<SettingsDb, Settings>()
    .Include<AdminSettings, AdminSettingsDb>()
    .ForMember(dest => dest.Field,
             opt => opt.MapFrom(src => some lambda with src.FieldDb));

CreateMap<AdminSettings, AdminSettingsDb>(); 

See Mapping inheritance .