1.ReverseMap
Post -> PostDto
[AutoMapFrom(typeof(Post))] public class PostDto : EntityDto
双向
CreateMap<Item, ItemDto>().ReverseMap();
[AutoMap(typeof(Post))] public class PostDto : EntityDto
2.Boolean
CreateMap<IdentityUser, ProfileDto>()
.ForMember(dest => dest.HasPassword,
op => op.MapFrom(src => src.PasswordHash != null))
.MapExtraProperties();
input.MapExtraPropertiesTo(user);
3.MapExtraProperties
CreateMap<IdentityUser, IdentityUserDto>()
.MapExtraProperties();