如何使用ASP.NET功能电影票信息的增删查改功能？

来源：www.45fan.com 2016-12-26 20:19:49

题目

1、使用Code First技术创建一个Movie数据模型。

public class Movie
 {
 public int ID { get; set; } //电影编号
 public string Title { get; set; } //电影名称
 public DateTime ReleaseDate { get; set; } //上映时间
 public string Genre { get; set; } //电影类型
 public decimal Price { get; set; } //电影票价
 public string Rating { get; set; } //电影分级
 }

2、使用MVC相关技术实现数据的列表显示和新增功能。

3、完成数据的编辑、删除、明细和条件查询等功能。

4、完成如下查询：

（1）查询尚未上映电影的信息

（4）查询票价在某个区间的电影信息

效果

如何使用ASP.NET功能电影票信息的增删查改功能？

（源码在文章结尾）

主要涉及知识点

1、ASP.NET WEB MVC下的目录结构以及基础编程

2、Linq查询操作

3、Code First

4、各模板View的建立和使用

主要代码

MovieController.cs

using ProjectThree.Models;
using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Linq;
using System.Web;
using System.Web.Mvc;
namespace ProjectThree.Controllers
{
 public class MovieController : Controller
 {
 MovieDBContext db = new MovieDBContext();
 // GET: Movie
 public ActionResult Index(string movieOn, string movieGenre,
  string searchString, string lowPrice, string highPrice)
 {
  //初始化电影是否上映下拉
  var GenreLst1 = new List<string>();
  GenreLst1.Add("是");
  GenreLst1.Add("否");
  ViewBag.movieOn = new SelectList(GenreLst1);
  //初始化电影类型下拉
  var GenreLst2 = new List<string>();
  var GenreQry = from d in db.Movies orderby d.Genre select d.Genre;
  GenreLst2.AddRange(GenreQry.Distinct()); //去重
  ViewBag.movieGenre = new SelectList(GenreLst2);
  var movies = from m in db.Movies select m;
  if (!String.IsNullOrEmpty(movieOn))
  {
  DateTime dtNow = DateTime.Now;
  if (movieOn.Equals("是"))
  { movies = movies.Where(s => DateTime.Compare(dtNow, s.ReleaseDate) > 0); }
  else if (movieOn.Equals("否"))
  { movies = movies.Where(s => DateTime.Compare(dtNow, s.ReleaseDate) <= 0); }
  }
  if (!String.IsNullOrEmpty(movieGenre))
  { movies = movies.Where(x => x.Genre == movieGenre); }
  if (!String.IsNullOrEmpty(searchString))
  { movies = movies.Where(s => s.Title.Contains(searchString)); }
  if ((!String.IsNullOrEmpty(lowPrice)) && (!String.IsNullOrEmpty(highPrice)))
  {
  try
  {
   Decimal low = Decimal.Parse(lowPrice);
   Decimal high = Decimal.Parse(highPrice);
   if (high < low)
   {
   Response.Write("<script>alert('左边价格不可大于右边!');</script>");
   }
   else
   {
   movies = movies.Where(s => s.Price >= low);
   movies = movies.Where(s => s.Price <= high);
   }
  }
  catch
  {
   Response.Write("<script>alert('必须输入数字!');</script>");
   return View(movies);
  }
  }
  return View(movies);
 }
 public ActionResult Create()
 {
  return View();
 }
 [HttpPost]
 public ActionResult Create(Movie m)
 {
  if (ModelState.IsValid)
  {
  db.Movies.Add(m);
  db.SaveChanges();
  return RedirectToAction("Index", "Movie");
  }
  return View(m);
 }
 public ActionResult Delete(int? id)
 {
  Movie m = db.Movies.Find(id);
  if (m != null)
  {
  db.Movies.Remove(m);
  db.SaveChanges();
  }
  return RedirectToAction("Index", "Movie");
 }
 public ActionResult Edit(int id)
 {
  Movie stu = db.Movies.Find(id);
  return View(stu);
 }
 [HttpPost]
 public ActionResult Edit(Movie stu)
 {
  db.Entry(stu).State = EntityState.Modified;
  db.SaveChanges();
  return RedirectToAction("Index", "Movie");
 }
 }
}

Movie.cs

using System;
using System.ComponentModel.DataAnnotations;
namespace ProjectThree.Models
{
 public class Movie
 {
 [Display(Name = "电影编号")]
 public int ID { get; set; } //电影编号
 [Display(Name = "电影名称")]
 [Required(ErrorMessage = "必填")]
 [StringLength(60, MinimumLength = 3, ErrorMessage = "必须是[3,60]个字符")]
 public string Title { get; set; } //电影名称
 [Display(Name = "上映时间")]
 [DataType(DataType.Date)]
 [DisplayFormat(DataFormatString = "{0:yyyy-MM-dd}",ApplyFormatInEditMode = true)]
 public DateTime ReleaseDate { get; set; } //上映时间
 [Display(Name = "电影类型")]
 [Required]
 public string Genre { get; set; } //电影类型
 [Display(Name = "电影票价")]
 [Range(1, 100)]
 [DataType(DataType.Currency)]
 public decimal Price { get; set; } //电影票价
 [Display(Name = "电影分级")]
 [StringLength(5)]
 [Required]
 public string Rating { get; set; } //电影分级
 }
}

MovieDBContext.cs

using System.Data.Entity;
namespace ProjectThree.Models
{
 public class MovieDBContext : DbContext
 {
 public DbSet<Movie> Movies { get; set; }
 }
}

Index.cshtml

@model IEnumerable<ProjectThree.Models.Movie>
@{
 ViewBag.Title = "Index";
}
<p>
 @Html.ActionLink("新建", "Create")
 @using (Html.BeginForm("Index", "Movie", FormMethod.Get))
 {
 <p>
 电影是否上映:@Html.DropDownList("movieOn", "all")
 电影类型:@Html.DropDownList("movieGenre", "all")
 电影名称:@Html.TextBox("SearchString")
 票价区间:@Html.TextBox("lowPrice")~@Html.TextBox("highPrice")
 <input type="submit" value="查询" />
 </p>
 }
</p>
<table class="table">
 <tr>
 <th>
  @Html.DisplayNameFor(model => model.Title)
 </th>
 <th>
  @Html.DisplayNameFor(model => model.ReleaseDate)
 </th>
 <th>
  @Html.DisplayNameFor(model => model.Genre)
 </th>
 <th>
  @Html.DisplayNameFor(model => model.Price)
 </th>
 <th>
  @Html.DisplayNameFor(model => model.Rating)
 </th>
 <th></th>
 </tr>
@foreach (var item in Model) {
 <tr>
 <td>
  @Html.DisplayFor(modelItem => item.Title)
 </td>
 <td>
  @Html.DisplayFor(modelItem => item.ReleaseDate)
 </td>
 <td>
  @Html.DisplayFor(modelItem => item.Genre)
 </td>
 <td>
  @Html.DisplayFor(modelItem => item.Price)
 </td>
 <td>
  @Html.DisplayFor(modelItem => item.Rating)
 </td>
 <td>
  @Html.ActionLink("编辑", "Edit", new { id=item.ID }) |
  @Html.ActionLink("详情", "Details", new { id=item.ID }) |
  @Html.ActionLink("删除", "Delete", new { id=item.ID }, new { onclick = "return confirm('确认删除吗？')" })
 </td>
 </tr>
}
</table>

Create.cshtml

@model ProjectThree.Models.Movie
@{
 ViewBag.Title = "Create";
}
@using (Html.BeginForm()) 
{
 @Html.AntiForgeryToken()
 <div class="form-horizontal">
 <h4>Movie</h4>
 <hr />
 @Html.ValidationSummary(true, "", new { @class = "text-danger" })
 <div class="form-group">
  @Html.LabelFor(model => model.Title, htmlAttributes: new { @class = "control-label col-md-2" })
  <div class="col-md-10">
  @Html.EditorFor(model => model.Title, new { htmlAttributes = new { @class = "form-control" } })
  @Html.ValidationMessageFor(model => model.Title, "", new { @class = "text-danger" })
  </div>
 </div>
 <div class="form-group">
  @Html.LabelFor(model => model.ReleaseDate, htmlAttributes: new { @class = "control-label col-md-2" })
  <div class="col-md-10">
  @Html.EditorFor(model => model.ReleaseDate, new { htmlAttributes = new { @class = "form-control" } })
  @Html.ValidationMessageFor(model => model.ReleaseDate, "", new { @class = "text-danger" })
  </div>
 </div>
 <div class="form-group">
  @Html.LabelFor(model => model.Genre, htmlAttributes: new { @class = "control-label col-md-2" })
  <div class="col-md-10">
  @Html.EditorFor(model => model.Genre, new { htmlAttributes = new { @class = "form-control" } })
  @Html.ValidationMessageFor(model => model.Genre, "", new { @class = "text-danger" })
  </div>
 </div>
 <div class="form-group">
  @Html.LabelFor(model => model.Price, htmlAttributes: new { @class = "control-label col-md-2" })
  <div class="col-md-10">
  @Html.EditorFor(model => model.Price, new { htmlAttributes = new { @class = "form-control" } })
  @Html.ValidationMessageFor(model => model.Price, "", new { @class = "text-danger" })
  </div>
 </div>
 <div class="form-group">
  @Html.LabelFor(model => model.Rating, htmlAttributes: new { @class = "control-label col-md-2" })
  <div class="col-md-10">
  @Html.EditorFor(model => model.Rating, new { htmlAttributes = new { @class = "form-control" } })
  @Html.ValidationMessageFor(model => model.Rating, "", new { @class = "text-danger" })
  </div>
 </div>
 <div class="form-group">
  <div class="col-md-offset-2 col-md-10">
  <input type="submit" value="Create" class="btn btn-default" />
  </div>
 </div>
 </div>
}
<div>
 @Html.ActionLink("Back to List", "Index")
</div>

Edit.cshtml

@model ProjectThree.Models.Movie
@{
 ViewBag.Title = "Edit";
}
<h2>Edit</h2>
@using (Html.BeginForm())
{
 @Html.AntiForgeryToken()
 <div class="form-horizontal">
 <h4>Movie</h4>
 <hr />
 @Html.ValidationSummary(true, "", new { @class = "text-danger" })
 @Html.HiddenFor(model => model.ID)
 <div class="form-group">
  @Html.LabelFor(model => model.Title, htmlAttributes: new { @class = "control-label col-md-2" })
  <div class="col-md-10">
  @Html.EditorFor(model => model.Title, new { htmlAttributes = new { @class = "form-control" } })
  @Html.ValidationMessageFor(model => model.Title, "", new { @class = "text-danger" })
  </div>
 </div>
 <div class="form-group">
  @Html.LabelFor(model => model.ReleaseDate, htmlAttributes: new { @class = "control-label col-md-2" })
  <div class="col-md-10">
  @Html.EditorFor(model => model.ReleaseDate, new { htmlAttributes = new { @class = "form-control" } })
  @Html.ValidationMessageFor(model => model.ReleaseDate, "", new { @class = "text-danger" })
  </div>
 </div>
 <div class="form-group">
  @Html.LabelFor(model => model.Genre, htmlAttributes: new { @class = "control-label col-md-2" })
  <div class="col-md-10">
  @Html.EditorFor(model => model.Genre, new { htmlAttributes = new { @class = "form-control" } })
  @Html.ValidationMessageFor(model => model.Genre, "", new { @class = "text-danger" })
  </div>
 </div>
 <div class="form-group">
  @Html.LabelFor(model => model.Price, htmlAttributes: new { @class = "control-label col-md-2" })
  <div class="col-md-10">
  @Html.EditorFor(model => model.Price, new { htmlAttributes = new { @class = "form-control" } })
  @Html.ValidationMessageFor(model => model.Price, "", new { @class = "text-danger" })
  </div>
 </div>
 <div class="form-group">
  @Html.LabelFor(model => model.Rating, htmlAttributes: new { @class = "control-label col-md-2" })
  <div class="col-md-10">
  @Html.EditorFor(model => model.Rating, new { htmlAttributes = new { @class = "form-control" } })
  @Html.ValidationMessageFor(model => model.Rating, "", new { @class = "text-danger" })
  </div>
 </div>
 <div class="form-group">
  <div class="col-md-offset-2 col-md-10">
  <input type="submit" value="Save" class="btn btn-default" />
  </div>
 </div>
 </div>
}
<div>
 @Html.ActionLink("Back to List", "Index")
</div>

源码地址

http://download.csdn.net/detail/double2hao/9710754

以上所述是小编给大家介绍的ASP.NET实现电影票信息的增删查改功能，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对路饭网站的支持！

路由器

电脑

手机

网络

如何使用ASP.NET功能电影票信息的增删查改功能？

推荐阅读