Automapper：按屬性命名約定展平不起作用

Question

我想將我的數據結構展平為 dto。

我的源類（簡化）看起來像：

public class DeliveryNote
{
    public DeliveryNoteNested DeliveryNoteNestedInstance { get; set; }
    public string VehicleNo { get; set; }
}

public class DeliveryNoteNested
{
    public string No { get; set; }
    public string PlantNo { get; set; }
}

我的 dto（也簡化了）就像

public class DeliveryNoteDto
{
    public int Id { get; set; }
    public string No { get; set; }
    public string PlantNo { get; set; }
    public string VehicleNo { get; set; }
}

然后我做我的映射：

Mapper.Initialize(cfg => cfg.CreateMap<DeliveryNote, DeliveryNoteDto>());
var source = new DeliveryNote
{
    VehicleNo = "VehicleNo20",
    DeliveryNoteNestedInstance = new DeliveryNoteNested
    {
        No = "42",
        PlantNo = "PlantNo10"
    }
};
var dto = Mapper.Map<DeliveryNoteDto>(source);

最后，我希望通過命名約定將我的屬性 No 和 PlantNo 填充到 dto 中，但事實並非如此。

當我做

Mapper.Initialize(cfg => cfg.CreateMap<DeliveryNote, DeliveryNoteDto>()
                                    .ForMember(dest => dest.No, opt => opt.MapFrom(src => src.DeliveryNoteNestedInstance.No))
                                    .ForMember(dest => dest.PlantNo, opt => opt.MapFrom(src => src.DeliveryNoteNestedInstance.PlantNo)));

它有效，但在我真正的課堂上我有接近 50 個屬性，我想盡可能避免這種樣板代碼。

Answer 1

基本約定是

public class DeliveryNoteDto
{
    public int Id { get; set; }
    public string DeliveryNoteNestedInstanceNo { get; set; }
    public string DeliveryNoteNestedInstancePlantNo { get; set; }
    public string VehicleNo { get; set; }
}

Answer 2

你也可以使用

 CreateMap(typeof(DeliveryNote), typeof(DeliveryNoteDto))
     .AfterMap((s, d) => Mapper.Map(s.DeliveryNoteNested, d));