報錯:Missing type map configuration or unsupported mapping

Darren Ji發表於2014-03-12

報錯:Missing type map configuration or unsupported mapping

□ 背景

當把View Model轉換成Domain Model儲存的時候,發生在AutoMapper的錯誤。

 

□ 分析

1、在派生於AutoMapper的Profile的類中已經建立對映:
Mapper.CreateMap<SomeDomainModel, SomeViewModel>();

 

2、也已經初始化派生於Profile的類:

    public static class AutoMapperConfiguration
    {
        public static void Configure()
        {
            Mapper.Initialize(x => x.AddProfile<SomeProfile>());
 
        }
    }

 

3、在全域性中也註冊了:

        protected void Application_Start()
        {
            //配置對映
            AutoMapperConfiguration.Configure();
        }    

 

4、單元測試也通過:

    [TestClass]
    public class AutoMapperConfigurationTester
    {
        [TestMethod]
        public void TestMethod1()
        {
            AutoMapperConfiguration.Configure();
            Mapper.AssertConfigurationIsValid();
        }
    }

□ 解決方法

在實際對映的時候,把AutoMapper.Mapper.Map<Source, Destination>換成AutoMapper.Mapper.DynamicMap<Source, Destination>

DomainModel someDomainModel = AutoMapper.Mapper.Map<ViewModel, DomainModel>(someViewModel);

改成:

DomainModel someDomainModel = AutoMapper.Mapper.DynamicMap<ViewModel, DomainModel>(someViewModel);    

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