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MVC4.0中下来列表框的，两种使用方法DropDownList

2024-07-14 23:16:34   226人阅读

后台控制器代码 public ActionResult Drop()        {            var list = new List<SchoolInfo>();            list.Add(new SchoolInfo() { SchoolID = 1, SName = "北京大学" });            list.Add(new SchoolInfo() { SchoolID = 2, SName = "上海大学" });            var model = new UserViewInfo();            model.ID = 1;            model.Name = "李春城";            model.Age = 13;            model.SCID = 1;            model.Datas = list;            ViewData.Model = model;            ViewBag.Drop = new SelectList(model.Datas, "SchoolID", "SName");                        return View();        }

　　

前台rasor页面@{    Layout = null;}@model MVC4Demon.Models.UserViewInfo<!DOCTYPE html><html><head>    <meta name="viewport" content="width=device-width" />    <title>Drop</title></head><body>    <div>      @Model.ID    </div>    <div>@Model.Name</div>
<!--第一种-->    @*<div>@Html.DropDownList("Drop","请选择")</div>*@
<!--第二种-->    <div><select id="Drop" name="Drop">        <option id="0">请选择</option>        @foreach (var item in Model.Datas)        {            <option id="@item.SchoolID" selected="@((Model.SCID==item.SchoolID)?"seletectd":"")">@item.SName</option>        }         </select></div></body></html>

　　

　　


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