需求：需要將Employee轉換成DTO

    public class Employee
    {
        public int Age { get; set; }
        public int EmployeeNum { get; set; }
        public string Name { get; set; }
        public string Sex { get; set; }
        public string Email { get; set; }

    }

    public class EmployeeDTO
    {
        
 
public int ID { get; set; }
        public string Name { get; set; }
        public string Email { get; set; }
    }

上面兩個類是基礎，下面需要去做對映。

    public class EmployeeProfile : Profile
    {
        public EmployeeProfile()
        {
            //CreateMap<Employee, EmployeeDTO>(); 如果 Employee 和 DTO中所要對映的屬性是一樣的，就可以這樣寫。

            
 
//將Employee類中的EmployeeNum 轉換成 DTO中的ID
            CreateMap<Employee, EmployeeDTO>().ForMember(dest => dest.ID, opt => opt.MapFrom(src => src.EmployeeNum));//有多個的話，可以鏈式去寫
        }
    }

對映好了之後，需要在Application_Start方法中去初始化AutoMapper。

        protected void Application_Start()
        {
            AreaRegistration.RegisterAllAreas();
            RouteConfig.RegisterRoutes(RouteTable.Routes);

            Mapper.Initialize(cfg 
 
=>
            {
                cfg.AddProfile(new EmployeeProfile());
            });
        }

做好對映之後就可以直接使用了。

        public ActionResult Index()
        {
            List<Employee> employees = new List<Employee>() { new Employee { Age = 18, Sex = "男", Email = "[email protected]", Name = "vichin", EmployeeNum = 1707107 } };
            IList<EmployeeDTO> viewModel = Mapper.Map<IList<Employee>, IList<EmployeeDTO>>(employees);
            return View();
        }

下面是結果：