使用自动映射器将多个集合映射到单个集合

Question

我能够使用以下代码将相同类型的集合组映射到单个集合。

AutoMapper.Mapper.CreateMap<Source, Destination>().ForMember(
                dest => dest.Drivers,
                opt => opt.MapFrom(src => src.BikeDrivers.Concat(src.CarDrivers).Concat(src.TruckDrivers))); 

使用上述解决方案，我能够将所有三种类型的驱动程序映射到一个集合中。我的目标对象（驱动程序）具有一个名为 DriverType 的属性，该属性有助于识别驱动程序的类型。（自行车司机/汽车司机/卡车司机）

在上面的代码中，我如何根据我添加的集合设置 DriverType 属性。

例如：我必须硬编码

驱动程序类型 = 汽车司机的汽车司机集合项驱动程序类型 = 自行车驱动程序对于自行车驱动程序集合项。

提前致谢

Answer 1

若要设置 DriverType 属性，必须在源对象中具有此知识。我看不到你的大局，但这可能用作示例

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {
            var s = new Source()
                        {
                            BikeDrivers = new List<BikeDriver>() {new BikeDriver()},
                            CarDrivers = new List<CarDriver>() {new CarDriver()},
                            TruckDrivers = new List<TruckDriver>() {new TruckDriver()},
                        };
            var d = new Destination();

            AutoMapper.Mapper.CreateMap<Source, Destination>().ForMember(
                dest => dest.Drivers,
                opt => opt.MapFrom(src => src.BikeDrivers.Concat<IDriver>(src.CarDrivers).Concat<IDriver>(src.TruckDrivers)));
            var result = AutoMapper.Mapper.Map(s, d);
        }
        public class Driver : IDriver
        {
            public string DriverType { get; set; }
        }
        public class Destination
        {
            public IEnumerable<IDriver> Drivers { get; set; }
        }
        public class Source
        {
            public IEnumerable<BikeDriver> BikeDrivers { get; set; }
            public IEnumerable<CarDriver> CarDrivers { get; set; }
            public IEnumerable<TruckDriver> TruckDrivers { get; set; }
        }
        public interface IDriver
        {
            string DriverType { get; set; }
        }
        public class BikeDriver : IDriver
        {
            public string DriverType
            {
                get { return "BikeDriver"; }
                set { throw new NotImplementedException(); }
            }
        }
        public class CarDriver : IDriver
        {
            public string DriverType
            {
                get { return "CarDriver"; }
                set { throw new NotImplementedException(); }
            }
        }
        public class TruckDriver : IDriver
        {
            public string DriverType
            {
                get { return "TruckDriver"; }
                set { throw new NotImplementedException(); }
            }
        }
    }
}