AutoMapper解析器未通過預期類型

鑑於以下類和解析器，爲什麼會出現此錯誤？我不明白爲什麼要傳入ProductAddModel。AutoMapper解析器未通過預期類型

AutoMapper.AutoMapperMappingException是由用戶代碼
消息=供給值是System.Decimal類型的未處理的但預期 AuctionCMS.Framework.Models.Admin.ProductAddModel。更改值解析器源類型的值，或使用FromMember將提供給值解析器的源值重定向到。

類型：

public class Currency 
    { 
     public Int64 Value { get; set; } 
     // Spot saved for currency type and any other extra properties 
    } 

    public class Product 
    { 
     public Currency Price { get; set; } 
     public Currency ReservePrice { get; set; } 
      } 

    public class ProductAddModel 
    { 
     public Decimal Price { get; set; } 
     public Decimal ReservePrice { get; set; } 
    }

解析器代碼：

public class DecimalToCurrencyValueResolver : ValueResolver<decimal, Currency> 
{ 
    #region Overrides of ValueResolver<decimal,Currency> 

    protected override Currency ResolveCore(decimal source) 
    { 
     return new Currency() { Value = (Int64)((decimal)source) * 1000 }; 
    } 

    #endregion 
} 

public class CurrencyToDecimalValueResolver : ValueResolver<Currency, decimal> 
{ 
    #region Overrides of ValueResolver<decimal,Currency> 

    protected override decimal ResolveCore(Currency source) 
    { 
     return (decimal)source.Value * 1000; 
    }

映射代碼：

  Mapper.CreateMap<ProductAddModel, Product>() 
       .ForMember(x => x.Price, opt => opt.ResolveUsing<DecimalToCurrencyValueResolver>()) 
       .ForMember(x => x.ReservePrice, opt => opt.ResolveUsing<DecimalToCurrencyValueResolver>()); 
      Mapper.CreateMap<Product, ProductAddModel>() 
       .ForMember(x => x.Price, opt => opt.ResolveUsing<CurrencyToDecimalValueResolver>()) 
       .ForMember(x => x.ReservePrice, opt => opt.ResolveUsing<CurrencyToDecimalValueResolver>()); 

var model = new ProductAddModel(); 
var product = new Product(); 
Mapper.Map<ProductAddModel, Product>(model, product);

什麼我做錯了，是這樣的方法來處理簡單的最佳方式在映射過程中轉換？

謝謝！

來源

2012-06-11 rboarman

使用類型轉換器來代替：

public class CurrencyToDecimalTypeConverter : ITypeConverter<Currency, Decimal> 
    { 
     public decimal Convert(ResolutionContext context) 
     { 
      return ((Currency)context.SourceValue).Value * 1000; 
     } 
    } 

    public class DecimalToCurrencyTypeConverter : ITypeConverter<Decimal, Currency> 
    { 
     public Currency Convert(ResolutionContext context) 
     { 
      return new Currency() { Value = (Int64)((decimal)context.SourceValue) * 1000 }; 
     } 
    }

這裏是配置：

Mapper.CreateMap<ProductAddModel, Product>(); 
Mapper.CreateMap<Product, ProductAddModel>(); 
Mapper.CreateMap<Decimal, Currency>().ConvertUsing<DecimalToCurrencyTypeConverter>(); 
Mapper.CreateMap<Currency, Decimal>().ConvertUsing<CurrencyToDecimalTypeConverter>(); 

var model = new ProductAddModel(); 
var product = new Product(); 
Mapper.Map<ProductAddModel, Product>(model, product);

來源

2012-06-12 08:41:08 k0stya

我幾乎得出了相同的結論。謝謝！ – rboarman

完美！完全是我需要解決我的問題的提示。 –

在分解器十進制中使用並映射productAddModel傳遞。所以映射應該是這樣的

Mapper.CreateMap<ProductAddModel, Product>() 
       .ForMember(x => x.Price, opt => opt.ResolveUsing<DecimalToCurrencyValueResolver>().FromMember(e => e.Value));

來源

2014-05-11 18:33:17 user3626204

AutoMapper解析器未通過預期類型

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