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要使用C# MVC框架开发任务管理应用程序,你需要遵循以下步骤:
创建项目:首先,使用Visual Studio创建一个新的C# MVC Web应用程序项目。选择"MVC 5 应用程序(.NET Framework)"模板。
设计模型(Model):创建一个名为Task的模型类,用于表示任务的基本属性,如标题、描述、截止日期等。在Model文件夹中创建一个名为Task.cs的文件,并添加以下代码:
public class Task
{
public int Id { get; set; }
public string Title { get; set; }
public string Description { get; set; }
public DateTime DueDate { get; set; }
public bool IsCompleted { get; set; }
}
using System.Collections.Generic;
using System.Linq;
using System.Web.Mvc;
using YourNamespace.Models;
namespace YourNamespace.Controllers
{
public class TasksController : Controller
{
private readonly ITaskRepository _taskRepository;
public TasksController(ITaskRepository taskRepository)
{
_taskRepository = taskRepository;
}
// GET: Tasks
public ActionResult Index()
{
var tasks = _taskRepository.GetAllTasks();
return View(tasks);
}
// GET: Tasks/Details/5
public ActionResult Details(int? id)
{
if (id == null)
{
return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
}
var task = _taskRepository.GetTaskById(id.Value);
if (task == null)
{
return HttpNotFound();
}
return View(task);
}
// GET: Tasks/Create
public ActionResult Create()
{
return View();
}
// POST: Tasks/Create
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Create([Bind(Include = "Title,Description,DueDate")] Task task)
{
if (ModelState.IsValid)
{
_taskRepository.AddTask(task);
_taskRepository.SaveChanges();
return RedirectToAction("Index");
}
return View(task);
}
// GET: Tasks/Edit/5
public ActionResult Edit(int? id)
{
if (id == null)
{
return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
}
var task = _taskRepository.GetTaskById(id.Value);
if (task == null)
{
return HttpNotFound();
}
return View(task);
}
// POST: Tasks/Edit/5
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Edit([Bind(Include = "Id,Title,Description,DueDate")] Task task)
{
if (ModelState.IsValid)
{
_taskRepository.UpdateTask(task);
_taskRepository.SaveChanges();
return RedirectToAction("Index");
}
return View(task);
}
// GET: Tasks/Delete/5
public ActionResult Delete(int? id)
{
if (id == null)
{
return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
}
var task = _taskRepository.GetTaskById(id.Value);
if (task == null)
{
return HttpNotFound();
}
return View(task);
}
// POST: Tasks/Delete/5
[HttpPost, ActionName("Delete")]
[ValidateAntiForgeryToken]
public ActionResult DeleteConfirmed(int id)
{
var task = _taskRepository.GetTaskById(id);
_taskRepository.DeleteTask(task);
_taskRepository.SaveChanges();
return RedirectToAction("Index");
}
}
}
using System.Collections.Generic;
using System.Linq;
using YourNamespace.Models;
namespace YourNamespace.Repositories
{
public interface ITaskRepository
{
IEnumerable<Task> GetAllTasks();
Task GetTaskById(int id);
void AddTask(Task task);
void UpdateTask(Task task);
void DeleteTask(Task task);
void SaveChanges();
}
}
接下来,实现ITaskRepository接口。在Models文件夹中创建一个名为TaskRepository.cs的文件,并添加以下代码:
using System.Collections.Generic;
using System.Linq;
using YourNamespace.Models;
namespace YourNamespace.Repositories
{
public class TaskRepository : ITaskRepository
{
private readonly ApplicationDbContext _context;
public TaskRepository(ApplicationDbContext context)
{
_context = context;
}
public IEnumerable<Task> GetAllTasks()
{
return _context.Tasks.ToList();
}
public Task GetTaskById(int id)
{
return _context.Tasks.Find(id);
}
public void AddTask(Task task)
{
_context.Tasks.Add(task);
}
public void UpdateTask(Task task)
{
_context.Tasks.Attach(task);
_context.Entry(task).State = EntityState.Modified;
}
public void DeleteTask(Task task)
{
_context.Tasks.Remove(task);
}
public void SaveChanges()
{
_context.SaveChanges();
}
}
}
using Microsoft.AspNet.Identity.EntityFramework;
using YourNamespace.Models;
namespace YourNamespace.Models
{
public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
public ApplicationDbContext()
: base("name=DefaultConnection", throwOnMissingConnectionString: false)
{
}
public static ApplicationDbContext Create()
{
return new ApplicationDbContext();
}
}
}
public void ConfigureServices(IServiceCollection services)
{
// ...
services.AddScoped<ITaskRepository, TaskRepository>();
// ...
}
public class RouteConfig
{
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.MapRoute(
name: "Default",
url: "{controller}/{action}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
);
}
}
现在,你已经创建了一个基本的C# MVC任务管理应用程序。你可以根据需要添加更多功能,如用户身份验证、任务状态更改(未完成/已完成)等。
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