Html.DropDownListFor 后台取值

2017-03-09 12:09:07 514 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

Python数据爬取超详细讲解（零基础入门，老年人都看的懂） Python数据爬取超详细讲解（零基础入门，老年人都看的懂）阅读详情

model：



public class RegisterViewModel

    {

        public IEnumerable<SelectListItem> aaa { get ; set; }

    }

-------------------------------------------------------------------------------------------------------------------
view:



 @Html.DropDownListFor(m => m.aaa, ViewData["d"] as SelectList)

-------------------------------------------------------------------------------------------------------------------
controls：



        public ActionResult Register()

        {

            List<SelectListItem> items = new List<SelectListItem>()

            {

                new SelectListItem(){Text="a", Value="a1", Selected = true},

                new SelectListItem(){Text="b", Value="b1"},

            };



            ViewData["d"] = new SelectList(items, "Value", "Text");            

            return View();

        }



        [HttpPost]

        public async Task<ActionResult> Register(RegisterViewModel model)

        {

            IEnumerable<SelectListItem> s = model.aaa as IEnumerable<SelectListItem>;



            if (s != null)

            {

                int i = -1;

                foreach (SelectListItem sli in s)

                {

                    i++;

                }

                Response.Write("<script type='text/javascript'>alert('" + i.ToString () + " ');</script >");

            }

            }