mvc dropdownlist 動態綁定

1，創建viewmodel

using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; namespace mvcTestHtml.ViewModel { public class DropDownlist { public SelectList dp { get; set; } } } 

 

2.在controller動態創建selectlist對象

 

public ActionResult About() { DropDownlist dd = new DropDownlist(); List<string> petlist = new List<string>(); petlist.Add("dog"); petlist.Add("cat"); petlist.Add("tiger"); petlist.Add("lion"); petlist.Add("moouse"); dd.dp = new SelectList(petlist); return View(dd); } 

3.在view上設置強類型<%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<mvcTestHtml.ViewModel.DropDownlist>" %>

 

4.添加dropdownlist

<%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<mvcTestHtml.ViewModel.DropDownlist>" %>

 

<asp:Content ID="aboutTitle" ContentPlaceHolderID="TitleContent" runat="server">

    關於我們

</asp:Content>

 

<asp:Content ID="aboutContent" ContentPlaceHolderID="MainContent" runat="server">

    <h2>關於</h2>

    <p>

        將內容放置在此處。

        <%=Html.DropDownList("dp",Model.dp) %>

    </p>

</asp:Content>

這樣就可以綁定了。