ASP.NET实现电影票信息的增删查改功能

网络编程 2021-07-04 22:41www.168986.cn编程入门

这篇文章主要介绍了ASP.NET实现电影票信息的增删查改功能的相关资料,非常不错，具有参考借鉴价值，需要的朋友可以参考下

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

（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.AntiFeryToken()
 <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.AntiFeryToken()
 <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

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