如何使用显式成员映射配置AutoMapper for Polymorphism？

Question

考虑以下基本情况:

Mapper.CreateMap<FromBase, ToBase>()
        .Include<FromD1, ToD1>()
        .Include<FromD2, ToD2>();

Mapper.CreateMap<FromD1, ToD1>()
        .ForMember( m => m.P0, a => a.MapFrom( x => x.Prop0 ) )
        .ForMember( m => m.P1, a => a.MapFrom( x => x.Prop1 ) );

Mapper.CreateMap<FromD2, ToD2>()
        .ForMember( m => m.P0, a => a.MapFrom( x => x.Prop0 ) )
        .ForMember( m => m.P2, a => a.MapFrom( x => x.Prop2 ) );

Mapper.AssertConfigurationIsValid();

FromBase[] froms = {
        new FromD1() { Prop0 = 10, Prop1 = 11 },
        new FromD2() { Prop0 = 20, Prop2 = 22 }
};

var tos = Mapper.Map<FromBase[], ToBase[]>( froms );

附:

public class FromBase {
    public int Prop0 { get; set; }
}
public class FromD1 : FromBase {
    public int Prop1 { get; set; }
}
public class FromD2 : FromBase {
    public int Prop2 { get; set; }
}

public class ToBase {
    public int P0 { get; set; }
}
public class ToD1 : ToBase {
    public int P1 { get; set; }
}
public class ToD2 : ToBase {
    public int P2 { get; set; }
}

它看起来像Automapper的doc上的示例.

然而Mapper.AssertConfigurationIsValid()断言抛出:

AutoMapperConfigurationException:"未映射ToBase上的以下1个属性:P0在FromBase上添加自定义映射表达式,忽略或重命名该属性."

除非我遗漏了一些东西,唯一的区别在于我不依赖于约定的示例,手动映射属性ForMember.还有几个派生类.不知道这些会是怎么回事,但我想不出别的什么.

任何的想法？

Answer 1

尽管配置验证断言失败，但映射实际上工作正常......