如何让AutoMapper在映射ViewModel后调用一个方法

Question

是否可以使AutoMapper在映射源和目标后调用方法?

我的ViewModel看起来像这样:

 public class ShowCategoriesViewModel
{
    public int category_id { get; set; }
    public string category_name { get; set; }
    public List<MvcApplication3.Models.Category> SubCategories { get; set; }
    public void Sort()
    {
        SubCategories.Sort(new CompareCategory());
    }
}

我的控制器是这样的:

        public ActionResult Index()
    {
        var category = db.Category.Where(y => y.parrent_id == null).ToList();
        Mapper.CreateMap<Category, ShowCategoriesViewModel>().
            ForMember(dest => dest.SubCategories, opt => opt.MapFrom(origin => origin.Category1));
        List<ShowCategoriesViewModel> scvm = Mapper.Map<List<Category>, List<ShowCategoriesViewModel>>(category);
        foreach (ShowCategoriesViewModel model in scvm)
        {
            model.Sort();
        }
        return View(scvm);
    }

我想让AutoMapper调用Sort()方法，而不是做foreach循环。这可能吗?

Answer 1

我想你可以在这里使用.AfterMap

Mapper.CreateMap<Category, ShowCategoriesViewModel>()
    .ForMember(dest => dest.SubCategories, opt => opt.MapFrom(origin => origin.Category1))
    .AfterMap((c,s) => s.Sort());