Error: Missing type map configuration or unsupported mapping
□ Background
When saving the View Model into Domain Model, an error occurred in AutoMapper.
□ Analysis
1. A mapping has been established in the Profile class derived from AutoMapper:
Mapper.CreateMap<SomeDomainModel, SomeViewModel>();
2. The classes derived from Profile have also been initialized:
public static class AutoMapperConfiguration
{
public static void Configure()
{
Mapper.Initialize(x => x.AddProfile<SomeProfile>());
}
}
public static class AutoMapperConfiguration
{
public static void Configure()
{
Mapper.Initialize(x => x.AddProfile<SomeProfile>());
}
}
public static class AutoMapperConfiguration { public static void Configure() { Mapper.Initialize(x => x.AddProfile<SomeProfile>()); } }
3. Also registered in the global:
protected void Application_Start()
{
//Configuration mapping
AutoMapperConfiguration.Configure();
}
protected void Application_Start()
{
//Configuration mapping
AutoMapperConfiguration.Configure();
}
protected void Application_Start() { //Configuration mapping AutoMapperConfiguration.Configure(); }
4. The unit test also passed:
[TestClass]
public class AutoMapperConfigurationTester
{
[TestMethod]
public void TestMethod1()
{
AutoMapperConfiguration.Configure();
Mapper.AssertConfigurationIsValid();
}
}
[TestClass]
public class AutoMapperConfigurationTester
{
[TestMethod]
public void TestMethod1()
{
AutoMapperConfiguration.Configure();
Mapper.AssertConfigurationIsValid();
}
}
[TestClass] public class AutoMapperConfigurationTester { [TestMethod] public void TestMethod1() { AutoMapperConfiguration.Configure(); Mapper.AssertConfigurationIsValid(); } }
□ Solution
When actually mapping, replace AutoMapper.Mapper.Map<Source, Destination> with AutoMapper.Mapper.DynamicMap<Source, Destination>
DomainModel someDomainModel = AutoMapper.Mapper.Map<ViewModel, DomainModel>(someViewModel);
Change to:
DomainModel someDomainModel = AutoMapper.Mapper.DynamicMap<ViewModel, DomainModel>(someViewModel);
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