带有部分 View 的 AJAX 分页列表

Question

我不太清楚如何使用 ajax 获取局部 View 以呈现分页列表。

我让它最接近工作的是来自 Using paging in partial view, asp.net mvc 的示例。

我基本上是在尝试创建一个页面，其中包含每个用户的评论列表，该页面可以以与 stackoverflow 用户页面上的答案选项卡相同的方式进行更改。

在第一次单击寻呼机时分页工作正常，但是一旦我再次单击寻呼机，就会返回部分 View 。

Controller :

public class ProductController : Controller
{
    public IQueryable<Product> products = new List<Product> { 
    new Product{ProductId = 1, Name = "p1"},
     new Product{ProductId = 2, Name = "p2"},
      new Product{ProductId = 3, Name = "p3"},
       new Product{ProductId = 4, Name = "p4"},
        new Product{ProductId = 5, Name = "p5"}
    }.AsQueryable();

    public object Index()
    {         
        return View();
    }

    public object Products(int? page)
    {
        var pageNumber = page ?? 1; // if no page was specified in the querystring, default to the first page (1)
        var onePageOfProducts = products.ToPagedList(pageNumber, 3); // will only contain 25 products max because of the pageSize

        ViewBag.OnePageOfProducts = onePageOfProducts;
        return PartialView("_Products");
    }
}

意见:

索引.cshtml:

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

<h2>List of Products</h2>

<div id="products">    
    @Html.Action("Products", "Product")
</div>


@section scripts{

    <script type="text/javascript">
    $(function() {
    $('#myPager').on('click', 'a', function() {
        $.ajax({
            url: this.href,
            type: 'GET',
            cache: false,
            success: function(result) {
                $('#products').html(result);
            }
        });
        return false;
    });
    });
    </script>
    }

_Products.cshtml:

@using PagedList.Mvc;
@using PagedList;


<ul>
    @foreach(var product in ViewBag.OnePageOfProducts){
        <li>@product.Name</li>
    }
</ul>

<!-- output a paging control that lets the user navigation to the previous page, next page, etc -->
<div id="myPager">
    @Html.PagedListPager((IPagedList)ViewBag.OnePageOfProducts, page => Url.Action("Products", new { page }))
</div>

模型

public class Product
{
    public int ProductId { get; set; }
    public string Name { get; set; }
}

谁能告诉我我做错了什么？

Answer 1

我最终使用了 pagedlist 源 [https://github.com/troygoode/PagedList][1]] 中不显眼的 ajax 示例。

部分观点:

@using PagedList;
@using PagedList.Mvc;    

<ul id="names" start="@ViewBag.Names.FirstItemOnPage">
    @foreach(var i in ViewBag.Names){
        <li>@i</li>
    }
</ul>

@Html.PagedListPager((IPagedList)ViewBag.Names, page => Url.Action("Index", new { page }), PagedListRenderOptions.EnableUnobtrusiveAjaxReplacing( new AjaxOptions(){  HttpMethod = "GET", UpdateTargetId = "unobtrusive"}))

指数:

@{
    ViewBag.Title = "Unobtrusive Ajax";
}
@using PagedList;
@using PagedList.Mvc;

@Styles.Render("~/Content/PagedList.css")

<h2>Unobtrusive Ajax</h2>

<p>Example of paging a list:</p>
<div id="unobtrusive">
    @Html.Partial("UnobtrusiveAjax_Partial")
</div>

Controller :

  public class UnobtrusiveAjaxController : BaseController
    {
        // Unobtrusive Ajax
        public ActionResult Index(int? page)
        {
            var listPaged = GetPagedNames(page); // GetPagedNames is found in BaseController
            if (listPaged == null)
                return HttpNotFound();

            ViewBag.Names = listPaged;
            return Request.IsAjaxRequest()
                ? (ActionResult)PartialView("UnobtrusiveAjax_Partial")
                : View();
        }
    }