Html.RadioButtonFor和Html.DropDownListFor 用法--备忘

Html.DropDownList 和DropDownListFor 用法

一、非强类型：
Controller:
ViewData["AreId"] = from a in rp.GetArea()
                               select new SelectListItem {
                               Text=a.AreaName,
                               Value=a.AreaId.ToString()
                               };
View:
@Html.DropDownList("AreId")
还可以给其加上一个默认选项：@Html.DropDownList("AreId", "请选择");

二、强类型：
DropDownListFor常用的是两个参数的重载，第一参数是生成的select的名称，第二个参数是数据，用于将绑定数据源至DropDownListFor
Modle:
   public class SettingsViewModel
   {
       Repository rp =new Repository();
       public string ListName { get; set; } 
       public  IEnumerable<SelectListItem> GetSelectList()
       {
               var selectList = rp.GetArea().Select(a => new SelectListItem {
                               Text=a.AreaName,
                               Value=a.AreaId.ToString()
                               });
               return selectList;
           }
       }
Controller:
       public ActionResult Index()
       {
           return View(new SettingsViewModel());
       }
View:
@model Mvc3Applicationtest2.Models.SettingsViewModel
@Html.DropDownListFor(m=>m.ListName,Model.GetSelectList(),"请选择")

Html.RadioButton和二、强类型：用法

强类型：

Controller：

　　public ActionResult Index()
       {
           return View(new SettingsViewModel());
       }

View：

@Html.RadioButtonFor(Model => Model.Status, 0, new { @id = "Statusradio0", @name = "Status" })正常

@Html.RadioButtonFor(Model => Model.Status, 1, new { @id = "Statusradio1", @name = "Status" })冻结

@Html.RadioButtonFor(Model => Model.Status, 2, new { @id = "Statusradio2", @name = "Status" })隐藏