ASP.NET MVC DropdownList的使用
1：直接使用HTML代码写
<select name="year"> <option value="2011">2010</option> <option value="2012">2011</option> <option value="2013">2012</option> <option value="2014">2013</option> </select>
效果：
2：将枚举中的值写入到 DropdownList
假设有个枚举：
1 namespace MvcDropdownList.Controllers 2 { 3 public class EnumController : Controller 4 { 5 // GET: /Enum/ 6 private const string ZHOUYI = "语文"; 7 private const string ZHOUER = "数学"; 8 private const string ZHOUSAN = "物理"; 9 private const string ZHOUSI = "化学"; 10 private const string ZHOUWU = "英语"; 11 private const string ZHOULIU = "C语言"; 12 private const string ZHOUQI = "ASP.NE"; 13 14 public enum Days 15 { 16 Monday =1, 17 Tuesday = 2, 18 Wednesday = 3, 19 Thursday = 4, 20 Friday = 5, 21 Saturday = 6, 22 Sunday = 7 23 } 24 25 public static IDictionary<int, string> BindData() 26 { 27 IDictionary<int, string> dict = new Dictionary<int, string>(); 28 29 dict.Add((int)Days.Monday, ZHOUYI); 30 dict.Add((int)Days.Tuesday, ZHOUER); 31 dict.Add((int)Days.Wednesday, ZHOUSAN); 32 dict.Add((int)Days.Thursday, ZHOUSI); 33 dict.Add((int)Days.Friday, ZHOUWU); 34 dict.Add((int)Days.Saturday, ZHOULIU); 35 dict.Add((int)Days.Sunday, ZHOUQI); 36 37 return dict; 38 } 39 public ActionResult Index2() 40 { 41 return View(); 42 } 43 } 44 }
拓展类：
1 namespace MvcDropdownList.Models 2 { 3 public static class TestExtention 4 { 5 public static MvcHtmlString DropDownList(this HtmlHelper helper, string name, IDictionary<int,string> dict, string key, string value) 6 { 7 SelectList selectListItems = new SelectList(dict, key, value); 8 return helper.DropDownList(name, selectListItems); 9 } 10 } 11 }
前台：
1 <body> 2 <div> 3 @Html.DropDownList("saaa", MvcDropdownList.Controllers.EnumController.BindData(),"Key","Value") 4 </div> 5 </body>
注意前台页面需要添加前面两个类的引用：
1 @using MvcDropdownList.Models 2 @using MvcDropdownList.Controllers;
效果：