省份下拉列表

    public class Student
    {
            public int Id { get; set; }
            public string Name { get; set; }
            public int ProvinceId { get; set; }
            public Province Province { get; set; }
    }

    public class Province
    {
            public int Id { get; set; }
            public string Name { get; set; }
    }

    public class App2DBContext:DbContext
    {
        public DbSet<Province> Provinces { get; set; }
        public DbSet<Student> Students { get; set; }
    }

 

控制器

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using MvcApplication2.Models;

 

namespace MvcApplication2.Controllers
{
    public class HomeController : Controller
    {
        App2DBContext db = new App2DBContext();

 

        public ActionResult CreateStudent()
        {
            var list = new SelectList(db.Provinces,"id","Name");
            ViewBag.ProvinceId = list;
            return View();
        }

 

        [HttpPost]
        public ActionResult CreateStudent(Student stu)
        {
            if (ModelState.IsValid)
            {
                stu.Province = db.Provinces.Find(stu.ProvinceId);
                db.Students.Add(stu);
                db.SaveChanges();
                //return RedirectToAction("ShowStudent", new { id = stu.Id });
            }
            var list = new SelectList(db.Provinces, "id", "Name");
            ViewBag.ProvinceId = list;
            return View();
        }

 

 

    }
}

 

视图CreateStudent

@model MvcApplication2.Models.Student

@{
    ViewBag.Title = "CreateStudent";
}

<h2>CreateStudent</h2>

@using (Html.BeginForm()) {
    @Html.AntiForgeryToken()
    @Html.ValidationSummary(true)

    <fieldset>
        <legend>Student</legend>

        <div class="editor-label">
            @Html.LabelFor(model => model.Name)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Name)
            @Html.ValidationMessageFor(model => model.Name)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.ProvinceId)
        </div>
        <div class="editor-field">
            @Html.DropDownList("ProvinceId","请选择省份")
            @Html.ValidationMessageFor(model => model.ProvinceId)
        </div>

        <p>
            <input type="submit" value="Create" />
        </p>
    </fieldset>
}

@section Scripts {
    @Scripts.Render("~/bundles/jqueryval")
}

ShowStudent视图

@model IEnumerable<MvcApplication2.Models.Student>

@{
    ViewBag.Title = "ShowStudent";
}

<h2>ShowStudent</h2>

<table>
    <tr>
        <th>
            @Html.DisplayNameFor(model => model.Name)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.ProvinceId)
        </th>
    </tr>

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

</table>