[我在运行API时遇到此错误：C＃Foreach语句不包含GetEnumerator1的公共定义

Question

我在c＃中使用Web API时遇到问题。该错误表明“ foreach语句无法对'StudentViewModel'类型的变量进行操作，因为'StudentViewModel'不包含'GetEnumerator'的公共实例定义”]

@model IEnumerable<WebApplication6.Models.StudentViewModel>

@{
ViewBag.Title = "Index";
}
<h2>Index</h2>
<p>
    @Html.ActionLink("Create New", "Create")
</p>
<table class="table">
<tr>
    <th>
        @Html.DisplayNameFor(model => model.StudentName)
    </th>
    <th></th>
</tr>
@foreach (var item in Model)
{
    <tr>

        <td>
            @Html.DisplayFor(modelItem => item.StudentName)
        </td>

        <td>
            @Html.ActionLink("Edit", "Edit", new { id = item.ID }) |


            @Html.ActionLink("Details", "Details", new { id = item.ID }) |


            @Html.ActionLink("Delete", "Delete", new { id = item.ID })
        </td>
    </tr>
}

这是studentViewModel类，它表示没有GetEnumerator定义：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace WebApplication6.Models
{
    public class StudentViewModel
    {
         public int ID { get; set; }
         public string StudentName { get; set; }

         public AddressViewModel Address { get; set; }
         public StandardViewModel Standard { get; set; }      
    }
}

这是我的控制器

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Web;
using System.Web.Mvc;
using WebApplication6.Models;

namespace WebApplication6.Controllers
{
public class ProcessController : Controller
{
    // GET: Process
    public ActionResult Index()
    {
        IEnumerable<StudentViewModel> students = null;

        using ( var client = new HttpClient() )
        {
            client.BaseAddress = new Uri("https://localhost:44397/api");

            var responseTask = client.GetAsync("student");
            responseTask.Wait();

            var result = responseTask.Result;
            if(result.IsSuccessStatusCode)
            {
                var readTask = result.Content.ReadAsAsync<IList<StudentViewModel>>();
                readTask.Wait();

                students = readTask.Result;
            }
            else
            {
                students = Enumerable.Empty<StudentViewModel>();

                 ModelState.AddModelError(string.Empty, "Server Error");
            }

        }
        return View(students);

    }
}

}

Answer 1

您能提供给我们控制器吗？>