使用Automapper将集合的属性映射到基元数组

using AutoMapper;
using System;
using System.Collections.Generic;

namespace AutomapperExample
{
    class Program
    {
        static void Main(string[] args)
        {
            // 创建映射配置
            var config = new MapperConfiguration(cfg =>
            {
                cfg.CreateMap<Source, Destination>()
                    .ForMember(dest => dest.PrimitiveArray, opt => opt.MapFrom(src => src.Collection.ToArray()));
            });

            // 创建映射器
            var mapper = config.CreateMapper();

            // 创建源对象
            var source = new Source
            {
                Collection = new List<int> { 1, 2, 3 }
            };

            // 进行映射
            var destination = mapper.Map<Destination>(source);

            // 输出结果
            Console.WriteLine(string.Join(",", destination.PrimitiveArray));
        }
    }

    public class Source
    {
        public IList<int> Collection { get; set; }
    }

    public class Destination
    {
        public int[] PrimitiveArray { get; set; }
    }
}