绑定DropDownListFor

ViewModel

 public class ArticleViewModel
    {
        public IEnumerable<SelectListItem> selectList { get; set;}      
    }

Controlles

public ActionResult Add()
        {
            ArticleViewModel viewModel = new ArticleViewModel();
            IList<ArticleTypeInfo> l = ServiceFactory.ArticleTypeService.GetAll();
            viewModel.selectList = l.Select(a => new SelectListItem
            {
                Text = a.ArticleTypeName,
                Value = a.ArticleTypeId.ToString()
            });
            return View(viewModel);
        }

View

@Html.DropDownListFor(m => m.ArticleTypeId, Model.selectList,"请选择")