HtmlHelper 不包含 PagedListPager 的定义

Question

我是 ASP.NET MVC 的新手，所以这个问题可能不会太复杂。我在向 ASP.NET MVC 项目添加分页时遇到问题。我已经从 NuGet 包安装程序安装了 pagedlist.mvc，然后在控制器中编写了这个简单的索引代码来传递分页列表：

using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using MvcMovie.Data;
using MvcMovie.Models;
using PagedList;

namespace MvcMovie.Controllers
{
    public class MoviesController : Controller
    {
        private readonly MvcMovieContext _context;

        public MoviesController(MvcMovieContext context)
        {
            _context = context;
        }

        // GET: Movies
        public IActionResult Index(int ? page)
        {
            var movies = from m in _context.Movies select m;
            int pageSize = 3;
            int pageNumber = (page ?? 1);
            return View(movies.ToPagedList(pageNumber,pageSize));
        }

然后，我更改了索引视图并在顶部添加了 @using PagedList.Mvc。我还将模型更改为 @model PagedList.IPagedList<MvcMovie.Models.Movie>。视图文件如下所示：

@using PagedList.Mvc;
@model PagedList.IPagedList<MvcMovie.Models.Movie>

@{
    ViewBag.Title = "Movie List";
}

<h1>Listă de filme</h1>

<p>
    <a asp-action="Create">Adaugă film</a>
</p>
<table class="table">
    <thead>
        <tr>
            <th>
                @Html.DisplayNameFor(model => model.FirstOrDefault().Title)
            </th>
            <th>
                @Html.DisplayNameFor(model => model.FirstOrDefault().ReleaseDate)
            </th>
            <th>
                @Html.DisplayNameFor(model => model.FirstOrDefault().Genre)
            </th>
            <th>
                @Html.DisplayNameFor(model => model.FirstOrDefault().Price)
            </th>
            <th></th>
        </tr>
    </thead>
    <tbody>
        @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>
                    <a asp-action="Edit" asp-route-id="@item.MovieId">Editează</a> |
                    <a asp-action="Details" asp-route-id="@item.MovieId">Detalii</a> |
                    <a asp-action="Delete" asp-route-id="@item.MovieId">Șterge film</a>
                </td>
            </tr>
        }
    </tbody>
</table>
<br />
<div style="margin:5px;">
    Page @(Model.PageCount < Model.PageNumber ? 0 : Model.PageNumber) of @Model.PageCount
    @Html.PagedListPager(Model, page => Url.Action("Index",
    new { page, sortOrder = ViewBag.CurrentSort, currentFilter = ViewBag.CurrentFilter }))
</div>

如您所见，我在视图底部编写了显示分页的代码，但出现错误：

'IHtmlHelper<IPagedList>' does not contain a definition for 'PagedListPager' and the best extension method overload 'HtmlHelper.PagedListPager(HtmlHelper, IPagedList, Func<int, string>)' requires a receiver of type 'HtmlHelper' MvcMovie

我也试过在视图文件的顶部添加 @using PagedList，但它什么也没做。

Answer 1

您缺少 Paggedlist.You 的程序集引用之一需要从 nuget 包安装两个包

分页列表和 PagedList.mvc（参考下图）

Click here for image references

如果你已经安装然后重新安装它们或重新启动项目

HtmlHelper 不包含 PagedListPager 的定义

HtmlHelper does not contain a definition for PagedListPager

html

c#

asp.net-mvc

pagination

pagedlist