[英]How to configure AutoMapper for Polymorphism with explicit member mapping?
Consider the following basic case: 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 );
With: 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; }
}
It looks like the example on Automapper's doc. 它看起来像Automapper的doc上的例子 。
However the Mapper.AssertConfigurationIsValid()
assertion throws: 但是
Mapper.AssertConfigurationIsValid()
断言抛出:
AutoMapperConfigurationException: "The following 1 properties on ToBase are not mapped: P0 Add a custom mapping expression, ignore, or rename the property on FromBase."
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。”
Unless I am missing something, the only differences with the example it that I am not relying on conventions, mapping the properties manually with ForMember
. 除非我遗漏了一些东西,与示例的唯一区别是我不依赖于约定,使用
ForMember
手动映射属性。 Also there are several derived classes. 还有几个派生类。 Not sure how these would be a problem, but I can't think of anything else.
不知道这些会是怎么回事,但我想不出别的什么。
Any idea? 任何想法?
虽然配置验证断言失败,但映射实际上工作正常。
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