在下面的例子中，如何将数据从IEnumerable数据从控制器传递到视图 [英] How to pass the data from IEnumerable data from controller to view in the case below

问题描述

问题描述：

我试图从控制器传递Ienumerable数据到视图来填充我的dropdownlist。虽然这样做我已经以某种方式成功获取数据直到控制器。我怎么通过它对视图有什么影响吗？我对剃须刀的语法有点不知情，因为它是ma rookie fr mvc。

任何帮助都会非常感激。



* note请原谅任何代码滥用。

谢谢。

型号：

Problem Description:
I a trying to pass the Ienumerable data from controller to view to populate my dropdownlist.While doing so i have somehow succeded to get the data till the controller.How do i pass it to the view?.I am a bit unaware about the razor syntax as m a rookie fr mvc.
Any help would be really appreciated.

*note Forgive any code abuses.
Thanks.
Model:

public class TS_entryscreen
   {
       public static string connstr = System.Configuration.ConfigurationManager.ConnectionStrings["DefaultConnection"].ConnectionString;
       SqlConnection connfordata = new SqlConnection(connstr);

      public string Name { get; set; }
    

       public IEnumerable<string> fillalldrp()
   {
        DataTable dtfrfilluser = new DataTable();
        connfordata.Open();
        SqlCommand cmdfruser = new SqlCommand("select (s000_firstname+s000_lastname)as Name  from s000_users", connfordata);
        SqlDataAdapter dafruser = new SqlDataAdapter(cmdfruser);
        connfordata.Close();
        dafruser.Fill(dtfrfilluser);

        List<string> lstusers = new List<string>();
        lstusers = dtfrfilluser.Rows.OfType<DataRow>().Select(dr => dr.Field<string>("Name")).ToList();

        IEnumerable<string> myEnumerable = lstusers;

        return myEnumerable;

   }

控制器：

Controller:

public ActionResult Index()
      {
          TS_entryscreen tsuser = new TS_entryscreen();
         IEnumerable<string> tsnewuser = tsuser.fillalldrp();
         return View(tsnewuser);
      }

查看：

View:

引用：

@model loginntimesheet.Models.TS_entryscreen

@ {

ViewBag.Title =主页;

}

@section特色{

@model loginntimesheet.Models.TS_entryscreen
@{
ViewBag.Title = "Home Page";
}
@section featured {

< ; hgroup class =title>



@ Html.DropDownList（名称）;

<hgroup class="title">

@Html.DropDownList("Name");

}

}

推荐答案

你应该仔细阅读一本书或在线教程MVC，因为你不能通过在论坛上提问来从头学到东西。您的模型由您从控制器返回的内容定义

You should really go through a book or on-line tutorials for MVC as you can't learn something from scratch by asking questions on a forum. Your model is defined by what you return from the controller

return View(tsnewuser);

tsnewuser是IEnumerable< string>所以你的视图需要定义为模型，但是你要定义

tsnewuser is IEnumerable<string> so your view needs to define that as the model, but you are defining

@model loginntimesheet.Models.TS_entryscreen

所以需要

So that needs to be

@model IEnumerable<string>

您可以使用模型访问模型（模型是一个特殊变量，永远是@model中定义的类型），所以循环你的字符串

You access the model using "Model" (Model is a special variable that will always be the type defined in @model), so to loop through your strings

foreach (string name in Model)
{
    <p>@name</p>
}

但是下拉列表包含一系列包含两个值，名称和值的内容，您还需要在某处存储所选项目，所以你不能从字符串列表中下拉。有一个特殊的结构用于制作下拉菜单，如果你看一下会有一些示例代码



http://odetocode.com/blogs/scott/archive/2013/03/11/dropdownlistfor-with -asp-net-mvc.aspx [ ^ ]

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