[英]Is it possible with Automapper 5 to map from many properties into one list?
I am not native English so apologies if there is already duplicated question. 我不是英语母语人士,所以如果已经有重复的问题,我深表歉意。
I have a request class: 我有一个要求课:
class input {
Car mainCar,
List<Car> otherCars
}
to be mapped into: 映射到:
class mapped {
List<CarDTO> cars
}
with option like when mapping from mainCar set carType=EnumCarType.Main, else EnumCarType.Other. 具有从mainCar映射时的选项,设置为carType = EnumCarType.Main,否则为EnumCarType.Other。
Will that work with Automapper 5? 可以在Automapper 5中使用吗?
This code should get you started, though hazy on some details and I don't have a compiler here: it makes reasonable assumptions and uses a custom type converter . 这段代码应该使您入门,尽管在某些细节上比较模糊,并且这里没有编译器:它做出合理的假设并使用自定义类型转换器 。 When this is registered, it's used to do the actual conversion whenever you map from an input object to a mapped object. 注册此对象后,每当您从输入对象映射到映射对象时,就会使用它进行实际的转换。
public class CarTypeConverter : ITypeConverter<input, mapped>
{
public mapped Convert(ResolutionContext context)
{
// get the input object from the context
input inputCar = (input)context.SourceValue;
// get the main car
CarDTO mappedMainCar = Mapper.Map<Car, CarDTO>(input.mainCar);
mappedMainCar.carType = EnumCarType.Main;
// create a list with the main car, then add the rest
var mappedCars = new List<CarDTO> { mappedMainCar };
mappedCars.AddRange(Mapper.Map<Car, CarDTO>(inputCar.otherCars));
return new mapped { cars = mappedCars };
}
}
// In Automapper initialization
mapperCfg.CreateMap<input, mapped>().ConvertUsing<CarTypeConverter>();
mapperCfg.CreateMap<Car, CarDTO>()
.ForMember(dest => dest.carType, opt => EnumCarType.Other);
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