用於自定義複雜類型的AutoMapper

Question

我有兩種複雜類型：一種進入服務層，作爲ViewModel和其他存儲庫層。 他們被定義爲如下：

//The Repository Layer 
public class ProductDetailsEntity 
     { 
      public Int64 StockNumber { get; set; } 

      public String StockName { get; set; } 

      public String Image { get; set; } 

      public Decimal Price { get; set; } 

      public String JewelleryName { get; set; } 

      public String ShortDescription { get; set; } 

      public Int64 ShippingDays { get; set; } 

      public String DesignCode { get; set; } 

      public List<SettingDetails> SettingsDetails { get; set; } 

      public List<SideStoneDetails> SideStoneDetails { get; set; } 
     } 

// The Service Layer 
public class ProductDetailsModel 
    { 
     public Int64 StockNumber { get; set; } 

     public String StockName { get; set; } 

     public String Image { get; set; } 

     public Decimal Price { get; set; } 

     public String JewelleryName { get; set; } 

     public String ShortDescription { get; set; } 

     public Int64 ShippingDays { get; set; } 

     public String DesignCode { get; set; } 

     public List<SettingDetailsModel> SettingsDetails { get; set; } 

     public List<SideStoneDetailsModel> SideStoneDetails { get; set; } 
    } 

有SettingsDetailsModel以及SettingDetails爲：

public class SettingDetails // same Structure with different Names 
    { 
     public Int64 AttributeId { get; set; } 

     public String AttributeName { get; set; } 

     public String AttributeValue { get; set; } 

    } 

而且SideStoneDetailsModel和SideStoneDetails爲：現在

public class SideStoneDetailsModel 
    { 
     public Int64 SideStoneSettingId { get; set; } 

     public String SideStoneSettingName { get; set; } 

     public String SideStoneSettingValue { get; set; } 
    } 

，而映射從實體到一個模型， 它是拋出一個AutoMapper例外說明：

現在

The following property on Repository.Entities.SettingDetails cannot be mapped: 
SettingsDetails 
Add a custom mapping expression, ignore, add a custom resolver, or modify the destination type Service.Models.SettingDetailsModel. 
Context: 
Mapping to property SettingsDetails of type Repository.Entities.SettingDetails from source type Service.Models.SettingDetailsModel 
Mapping to property SettingsDetails of type System.Collections.Generic.List`1[[Repository.Entities.SettingDetails, Repository, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]] from source type System.Collections.Generic.List`1[[Service.Models.SettingDetailsModel, Service, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]] 
Mapping to type Repository.Entities.ProductDetailsEntity from source type Service.Models.ProductDetailsModel 
Exception of type 'AutoMapper.AutoMapperConfigurationException' was thrown. 

，映射器實現包含

Mapper.CreateMap<SettingDetails, SettingDetailsModel>(); 
Mapper.CreateMap<SideStoneDetails, SideStoneDetailsModel>(); 
Mapper.CreateMap<ProductDetailsModel, ProductDetailsEntity>(); 
Mapper.AssertConfigurationIsValid(); 

其基本上沒有自定義類型的列表。我不明白的地方是哪裏錯了： Uptill現在我發現是：

• 添加單獨的映射爲不同的類型。檢查！
• 自定義映射函數 - 但爲什麼？在這種情況下，我不知道爲什麼要這樣做？

我該如何解決？我想從庫中的實體映射到我的視圖模型

Answer 1

你真的是這一行：

Mapper.CreateMap<ProductDetailsModel, ProductDetailsEntity>(); 

還是你想圓創建地圖的其他方式？

Mapper.CreateMap<ProductDetailsEntity, ProductDetailsModel>(); 

我不知道要映射哪個方向，但如果你確實做希望你將不得不從SettingDetailsModel定義映射回SettingDetails前者，那就是：

Mapper.CreateMap<SettingDetails, SettingDetailsModel>();