索引视图未将参数Id传递给mvc控制器



我正在使用asp.net核心MVC项目,当我试图从视图(cshtml(获取我的模型的Id API时遇到了一个问题。(请注意,getbyid API在使用Postman进行测试时有效(

我的型号:

public class Movie
{
[Key]
public int Id { get; set; }
public string Title { get; set; }
public string Director { get; set; }
public DateTime DateReleased { get; set; }
[Range(0, 9)]
public int Rating { get; set; }
public string Image { get; set; }
}

我的控制器方法:

namespace MovieTheatreManagement.Controllers
{
[Route("api/Movie")]
[ApiController]
public class MovieController : Controller
{

#region Fields
private readonly IMovieRepository _movieRepository;
private readonly IMapper _mapper;
private readonly ILogger _logger;
#endregion Fields

#region Constructors
public MovieController(IMovieRepository movieRepository, IMapper mapper, ILogger<MovieController> logger)
{
_movieRepository = movieRepository;
_mapper = mapper;
_logger = logger;
}
#endregion Constructors

#region HtmlRequests

[HttpGet("/")]
public IActionResult Index()
{
return View(_movieRepository.GetAllMovies().ToList().OrderBy(m => m.Id));
}

public ActionResult Create()
{
return View();
}

[HttpGet("Delete")]
[Route("Delete/{id}")]
public ActionResult Delete([FromRoute] int id)
{
var movie = _movieRepository.GetMovieById(id);
return View(movie);
}

#endregion HtmlRequests
[HttpGet("/All")]
public ActionResult<IEnumerable<GetModels>> GetAllMovies()
{
var movieItems = _movieRepository.GetAllMovies();
// var newitems = Convert.FromBase64String();

return Ok(_mapper.Map<IEnumerable<GetModels>>(movieItems));
}
[HttpPost]
public ActionResult Create([FromForm]CreateModels movieRequest)
{
//CreateModels movieRequest = new CreateModels();
_logger.LogInformation("hi I am create method");
var movie = _mapper.Map<Movie>(movieRequest);
_movieRepository.Create(movie);
_movieRepository.SaveChanges();
var command = _mapper.Map<GetModels>(movie);
return RedirectToAction("Index");
//CreatedAtRoute(nameof(GetMovieById), new {Id = command.Id}, command);
}
[HttpPost("id")]
public ActionResult ApplyDelete([FromRoute(Name = "id")]int id)
{
var command = _movieRepository.GetMovieById(id);
if (command == null)
{
return NotFound();
}
_movieRepository.DeleteMovie(command);
_movieRepository.SaveChanges();
return RedirectToAction("Index");
}

我的存储库(这是我调试后得到id为null的问题(

public Movie GetMovieById(int id)
{
return _context.Movies.FirstOrDefault(item => item.Id == id);
}

视图:

@model IEnumerable<MovieTheatreManagement.Models.Movie>
@{
ViewBag.Title = "Index";
}
<h2>Movie Theatre Management</h2>
<p>
@Html.ActionLink("Create New Movie", "Create", "Movie", new{}, new { @class = "btn btn-default" })
</p>
<p>
@using (Html.BeginForm())
{
<div>
@Html.TextBox("txtTitle", "")
<input type="submit" value="Filter by Title" class="btn btn-default" />
</div>
}
</p>
<table class="table">
<tr>
<th>
@Html.DisplayNameFor(model => model.Id)
</th>
<th>
@Html.DisplayNameFor(model => model.Title)
</th>
<th>
@Html.DisplayNameFor(model => model.DateReleased)
</th>
<th>
@Html.DisplayNameFor(model => model.Director)
</th>
<th>
@Html.DisplayNameFor(model => model.Rating)
</th>
<th>
@Html.DisplayNameFor(model => model.Image)
</th>
<th></th>
</tr>
@foreach (var item in Model) {
<tr>
<td>
@Html.DisplayFor(modelItem => item.Id)
</td>
<td>
@Html.DisplayFor(modelItem => item.Title)
</td>
<td>
@Html.DisplayFor(modelItem => item.DateReleased)
</td>
<td>
@Html.DisplayFor(modelItem => item.Director)
</td>
<td>
@Html.DisplayFor(modelItem => item.Rating)
</td>
<td>
<img width="100px" height="100px" src=@Html.DisplayFor(modelItem => item.Image) /> 
</td>
<td>
@Html.ActionLink("Edit", "Edit", new { id=item.Id }) |
@Html.ActionLink("Delete Movie", "Delete", "Movie" ,new { id = item.Id })
</td>
</tr>
}
</table>

删除页面:

@model MovieTheatreManagement.Models.Movie
@{
ViewBag.Title = "Delete";
}
<h2>Delete</h2>
<h3>Are you sure you want to delete this?</h3>
<div>
<h4>Movie</h4>
<hr />
<dl class="dl-horizontal">
<dt>
@Html.DisplayNameFor(model => model.Title)
</dt>
<dd>
@Html.DisplayFor(model => model.Title)
</dd>
<dt>
@Html.DisplayNameFor(model => model.DateReleased)
</dt>
<dd>
@Html.DisplayFor(model => model.DateReleased)
</dd>
<dt>
@Html.DisplayNameFor(model => model.Director)
</dt>
<dd>
@Html.DisplayFor(model => model.Director)
</dd>

<dt>
@Html.DisplayNameFor(model => model.Rating)
</dt>
<dd>
@Html.DisplayFor(model => model.Rating)
</dd>

<dt>
@Html.DisplayNameFor(model => model.Image)
</dt>
<dd>
@Html.DisplayFor(model => model.Image)
</dd>
</dl>
@using (Html.BeginForm(actionName:"ApplyDelete", controllerName:"Movie", new { id = Model.Id } , FormMethod.Post)) {
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<input type="submit" value="Delete" class="btn btn-default"/>
</div>
</div>
}
<div>
@Html.ActionLink("Back to List", "Index")
</div>
</div>

注意:我认为ActionLink中的routeValues没有为我提供需要的ID

ActionLink总是调用GET metod

所以修复你的动作

[Route("Delete/{id}")]
public ActionResult Delete( int id)
.....

其他类似的API 也是如此

[Route("ApplyDelete/{id}")]
public ActionResult ApplyDelete(int id)
....

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