http://bbs.csdn.net/topics/390867060
由于不知道错误原因在哪 我尽量把代码都贴出来吧：
重点是：在 Controller 类里 我给 SelectListItem集合的 某项 Selected 赋值为TRUE 在视图中就应该 将该项选中吧？？ 在我这怎么没还是呢？ 没有任何项选中！！
Controller 类：
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using S01MVC.Models;using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.Mvc;namespace S01MVC.Controllers{ public class LkfValidateController : Controller { // // GET: /LkfValidate/ public ActionResult Index() { LkfValidateData model = new LkfValidateData() { InCome = 1000000, LastLoginTime = DateTime.Now.AddDays(-5), UserPassword = "12345678", UserName = "郭德纲", UserID = 1 }; List<SelectListItem> list = new List<SelectListItem>(); list.Add(new SelectListItem() { Text = "500元以下", Value = "500" }); list.Add(new SelectListItem() { Text = "1000元以下", Value = "1000" }); list.Add(new SelectListItem() { Text = "一万元以下", Value = "10000" }); list.Add(new SelectListItem() { Text = "十万元以下", Value = "100000"}); list.Add(new SelectListItem() { Text = "一百万元以下", Value = "1000000", Selected = true }); ViewData["income"] = list.AsEnumerable(); return View(model); } }} |
Views 视图：
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@model S01MVC.Models.LkfValidateData@{ Layout = null;}<!DOCTYPE html><html><head> <meta name="viewport" content="width=device-width" /> <title>Index</title> <style type="text/css"> #tbinfo{border:1px solid #0094ff; margin:auto} #tbinfo td{ border: 1px solid #0094ff; } </style></head><body> <div> @using(Html.BeginForm("edit","LkfValidateData",FormMethod.Post)) { IHtmlString stralogn = Html.Raw("align="right""); <table id="tbinfo"> <tr><td align="right">@Html.LabelFor(c=>c.UserID)</td><td>@Model.UserID</td></tr> <tr><td @stralogn>@Html.LabelFor(c => c.UserName)</td><td>@Html.TextBoxFor(c => c.UserName) </td></tr> <tr><td @stralogn>@Html.LabelFor(c => c.UserPassword)</td><td>@Html.EditorFor(c=>c.UserPassword)</td></tr> <tr><td @stralogn>@Html.LabelFor(c => c.LastLoginTime)</td><td>@Html.DisplayTextFor(c=>c.LastLoginTime)</td></tr> <tr><td @stralogn>@Html.LabelFor(c => c.InCome)</td><td>@Html.DropDownListFor(c=>c.InCome,ViewData["income"] as IEnumerable<SelectListItem>)</td></tr> </table> } </div></body></html> |
模型类：LkfValidateData
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namespace S01MVC.Models{ public class LkfValidateData { [DisplayNameAttribute("用户ID")] public long UserID { get; set; } [DisplayName("用户名")] public string UserName { get; set; } [DisplayName("用户密码")] [DataTypeAttribute(DataType.Password)] public string UserPassword { get; set; } [DisplayName("最后登录时间")] public DateTime? LastLoginTime { get; set; } [DisplayName("收入")] public decimal InCome { get; set; } }} |