如何从mvc3中的下拉列表中获取价值？ [英] How to get value from dropdownlist in mvc3 ?

问题描述

 public ActionResult bindddl（）
 {
 List <   CRBT_SongMaster  >  titlelist = new List <   CRBT_SongMaster  > （）; 
 var TitleLST = new List <   string   > （）; 
 var GenreQuery =来自z的dbcontext.CRBT_SongMaster orderby z.SongId select z.TitleAlbum; 
 TitleLST.AddRange（GenreQuery.Distinct（））; 
 ViewBag.TitleList = new SelectList（TitleLST）; 
 return View（bindddl，titlelist）; 
} 

这是我上面的行动方法。



以下是我的查看页面....

专辑列表

@Html.DropDownList（TitleList，----选择专辑标题----）



请帮帮我我将如何从此下拉列表中获取价值？

解决方案

在后期操作中尝试此操作。



< pre lang =c＃>专辑.title = Convert.ToInt32（请求[ TitleList]） ;

@ Html.DropDownListFor（Model => Model.AlbumTitle，new List< selectlistitem>

{

new SelectListItem {Text =Equities，Value =5}，

new SelectListItem {Text =Bonds，Value =1}，
new SelectListItem {Text =CDS，Value =2}，

new SelectListItem {Text =ADS，Value =3}，

new SelectListItem {Text =EDC，Value =4}

}， - 选择专辑 - ，新{style =width：153px;}）< br $>








[HttpPost]

public ActionResult bindddl（Model objModel）

{

//这里获取下拉列表值

string str = objModel.AlbumTitle;



}

 < span class =code-keyword>在控制器
 ViewBag.StateList =（来自 s  in  _db.StateMasters 
 选择 s）.ToList（）; 
 
 在 查看 
< div class =   control-group> 
< div class =   controls> 
< div class =   form-label> 
状态  star> * < / div> ; 
  @ Html  .DropDownListFor（model => model.State，
 new SelectList（ViewBag.StateList，  StateName，  StateName ），   - 选择 - ，new { @ class  =   span12 cusmo-input}）
  @ Html  .ValidationMessage（  State，new { @ style  =  颜色：红色}）
< / div> 
 
< / div> 
 
 在控制器
 
 objCust.State = model.State ==  null ？ string.Empty：model.State; 

public ActionResult bindddl()
       {
           List<CRBT_SongMaster> titlelist = new List<CRBT_SongMaster>();
           var TitleLST = new List<string>();
           var GenreQuery = from z in dbcontext.CRBT_SongMaster orderby z.SongId select z.TitleAlbum;
               TitleLST.AddRange(GenreQuery.Distinct());
               ViewBag.TitleList = new SelectList(TitleLST);
              return View("bindddl", titlelist);
       }

This is my action method above.

below is my view page....

Album List

@Html.DropDownList("TitleList", "----Select Album Title----")

please help me how will I get value from this dropdownlist ?

解决方案

try with this in post action.

Album .title = Convert.ToInt32(Request["TitleList"]);

@Html.DropDownListFor(Model=>Model.AlbumTitle, new List<selectlistitem>
{
new SelectListItem{ Text="Equities", Value = "5" },
new SelectListItem{ Text="Bonds", Value = "1" },
new SelectListItem{ Text="CDS", Value = "2" },
new SelectListItem{ Text="ADS", Value = "3" },
new SelectListItem{ Text="EDC", Value = "4" }
}, "--Select Album--",new { style = "width: 153px;" })




[HttpPost]
public ActionResult bindddl( Model objModel)
{
//Here Get Dropdown list value
string str=objModel.AlbumTitle;

}

In Controller
ViewBag.StateList = (from s in _db.StateMasters
                                select s).ToList();

In View
 <div class="control-group">
                        <div class="controls">
                            <div class="form-label ">
                                State "star">*</div>
                            @Html.DropDownListFor(model => model.State,
                                      new SelectList(ViewBag.StateList, "StateName", "StateName"), "-- Select --", new { @class = "span12 cusmo-input" })
                            @Html.ValidationMessage("State", new { @style = "color:red" })
                        </div>
      
              </div>

In controller

 objCust.State = model.State == null ? string.Empty : model.State;

这篇关于如何从mvc3中的下拉列表中获取价值？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！