Question

我正在尝试将分页功能插入其他公司的现有应用程序版本中。我在cshtml时遇到错误：

编译器错误消息：CS1928：'System.Web.Mvc.HtmlHelper>'不包含'PagedListPager'的定义，最佳扩展方法重载'PagedList.Mvc.HtmlHelper.PagedListPager（System.Web.Mvc.HtmlHelper ，PagedList.IPagedList，System.Func）'包含一些无效的参数

源错误：

编译器错误消息：CS1928：'System.Web.Mvc.HtmlHelper>'不包含'PagedListPager'的定义，最佳扩展方法重载'PagedList.Mvc.HtmlHelper.PagedListPager（System.Web.Mvc.HtmlHelper ，PagedList.IPagedList，System.Func）'包含一些无效的参数

源错误：

@ Html.PagedListPager（Model，page => Url.Action（“ Index”，新建{页面，sortOrder = ViewBag.CurrentSort，currentFilter = ViewBag.CurrentFilter}））

控制器：

 public ActionResult Index(int? page, string sortOrder, string currentFilter, int? managerGroupId, int? userGroupId, bool deletedBooks = false)
    {     
           var models = new LibraryViewModel[] { };
            models = Repository.LibrariesAsViewModels(managerGroup: managerGroupId, userGroup: userGroupId, includeInactive: deletedBooks)
                    .Where(p => p.ParentID.HasValue == false).OrderByDescending(p => p.SortOrder)
                    .Where(p => deletedBooks ? p.IsActive == false : true)
                    .ToArray();

            ViewBag.CurrentSort = sortOrder;
            ViewBag.currentFilter = currentFilter;
            int pageSize = 6;
            int pageNumber = (page ?? 1);

        //    var model = new PageModelList<LibraryViewModel>();  **original code
        //    model.Items = models;  ** original code

            var modelnew = new PageModelList<LibraryViewModel>();
            modelnew.PList = models.ToPagedList(pageNumber, pageSize);

        // return view(model) **original code
            return View(modelnew);

}

PageModelList类

 public class PageModelList<T> : PageModel
{
    public IEnumerable<T> Items { get; set; }
    public int Count
    {
        get
        {
            if (Items == null)
            {
                return 0;
            }

            return Items.Count();
        }
    }

    public IPagedList<T> PList { get; set; }
}

查看

@using PagedList.Mvc;
@using PagedList;
@model PageModelList<LibraryViewModel>

@*model PagedList.IPagedList<PageModelList<LibraryViewModel>>  --Commented out, there is error*@ 


<link href="~/Content/PagedList.css" rel="stylesheet" type="text/css" />

<div class="text-center">
    <ul class="pagination">
        @*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 }))
    </ul>
</div>

Answer 1

@Html.PagedListPager的参数必须是IPagedList的类型，而不是PageModelList的类型。您必须在控制器中进行更改以返回IPagedList类型的模型，并且还必须在视图中更改@model语句。

@model IPagedList<LibraryViewModel>

ASP.NET MVC不包含“ PagedListPager”的定义

PageModelList类

查看

1 个答案: