下载asp.net MVC

Question

当我添加一个带有Entity Framework的控制器时，它会生成视图，但它会错过像Teacher和Student这样的字段，它只会创建ProjectName和Discription字段和视图。我想要的是从学生和教师表中下载数据。 Microsoft Virtual Acadmey的MusicStore教程编写了相同的代码，然后出现了下拉，但我遇到了问题。

（我是MVC模式的新手） 编译代码并运行它

Project.cs（模态类）

{
    public class Project
    {
        public int ID { get; set; }
        public int StudentID { get; set; }
        public int TeachersID { get; set; }
        public string ProjectName { get; set; }
        public Teachers Teachers { get; set; }
        public Student Student1 { get; set; }
        public Student Student2 { get; set; }
        public Student Student3 { get; set; }
        public string Discription { get; set; }

    }
}

控制器

using DataCollection.Models;

namespace DataCollection.Controllers
{
    public class ProjectsController : Controller
    {
        private DataCollectionContext db = new DataCollectionContext();

        // GET: Projects
        public ActionResult Index()
        {
            return View(db.Projects.ToList());
        }

        // GET: Projects/Details/5
        public ActionResult Details(int? id)
        {
            if (id == null)
            {
                return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
            }
            Project project = db.Projects.Find(id);
            if (project == null)
            {
                return HttpNotFound();
            }
            return View(project);
        }

        // GET: Projects/Create
        public ActionResult Create()
        {
            return View();
        }

        // POST: Projects/Create
        // To protect from overposting attacks, please enable the specific properties you want to bind to, for 
        // more details see http://go.microsoft.com/fwlink/?LinkId=317598.
        [HttpPost]
        [ValidateAntiForgeryToken]
        public ActionResult Create([Bind(Include = "ID,ProjectName,Discription")] Project project)
        {
            if (ModelState.IsValid)
            {
                db.Projects.Add(project);
                db.SaveChanges();
                return RedirectToAction("Index");
            }

            return View(project);
        }

        // GET: Projects/Edit/5
        public ActionResult Edit(int? id)
        {
            if (id == null)
            {
                return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
            }
            Project project = db.Projects.Find(id);
            if (project == null)
            {
                return HttpNotFound();
            }
            return View(project);
        }

        // POST: Projects/Edit/5
        // To protect from overposting attacks, please enable the specific properties you want to bind to, for 
        // more details see http://go.microsoft.com/fwlink/?LinkId=317598.
        [HttpPost]
        [ValidateAntiForgeryToken]
        public ActionResult Edit([Bind(Include = "ID,ProjectName,Discription")] Project project)
        {
            if (ModelState.IsValid)
            {
                db.Entry(project).State = EntityState.Modified;
                db.SaveChanges();
                return RedirectToAction("Index");
            }
            return View(project);
        }

        // GET: Projects/Delete/5
        public ActionResult Delete(int? id)
        {
            if (id == null)
            {
                return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
            }
            Project project = db.Projects.Find(id);
            if (project == null)
            {
                return HttpNotFound();
            }
            return View(project);
        }

        // POST: Projects/Delete/5
        [HttpPost, ActionName("Delete")]
        [ValidateAntiForgeryToken]
        public ActionResult DeleteConfirmed(int id)
        {
            Project project = db.Projects.Find(id);
            db.Projects.Remove(project);
            db.SaveChanges();
            return RedirectToAction("Index");
        }

        protected override void Dispose(bool disposing)
        {
            if (disposing)
            {
                db.Dispose();
            }
            base.Dispose(disposing);
        }
    }
}

我的观点如下

@model IEnumerable<DataCollection.Models.Project>

@{
    ViewBag.Title = "Index";
}

<h2>Index</h2>

<p>
    @Html.ActionLink("Create New", "Create")
</p>
<table class="table">
    <tr>
        <th>
            @Html.DisplayNameFor(model => model.ProjectName)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Discription)
        </th>
        <th></th>
    </tr>

@foreach (var item in Model) {
    <tr>
        <td>
            @Html.DisplayFor(modelItem => item.ProjectName)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Discription)
        </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>
}

</table>

教师模式

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

namespace DataCollection.Models
{
    public class Teachers
    {
        public int TeachersID { get; set; }

        [Required]
        [StringLength(100,ErrorMessage ="Enter First Name")]
        [Display(Name = "First Name")]
        public string FName { get; set; }

        [Required]
        [StringLength(100, ErrorMessage = "Enter Last Name")]
        [Display(Name = "Last Name")]
        public string LName { get; set; }

        //[Display(Name = "First Name")]
        [Required]
        [StringLength(100, ErrorMessage = "Enter Designation")]
        public string Designation { get; set; }

        [Display(Name = "Project Evulation Committee")]
        public Boolean PREC { get; set; }

        [Display(Name = "Evaluation Committee")]
        public Boolean EC { get; set; }

        [Display(Name = "Project Coordinator")]
        public Boolean ProjCoordinator { get; set; }

        public virtual ICollection<Project> Project { get; set; }
    }
}

（欢迎评论，谢谢）