Question

从我的RSS Feed中检索图像时，我仍然坚持如何处理分页。我还有一个帮助器来呈现寻呼机链接的html。但是我不确定在Index操作中该怎么做。我的代码如下：

在我的控制器中：

Public Function Index() As ActionResult
        Dim feedurl As String = "http://riderdesign.net/p290530166/recent.rss"
        Using x = XmlReader.Create(feedurl)
            Dim r = XDocument.Load(x)
            Dim mediapfx As XNamespace = "http://search.yahoo.com/mrss/"
            '  Dim rssfeed = SyndicationFeed.Load(x)
            Dim ml = From item In r.Descendants(mediapfx + "content") Select item
            Dim PageSize As Integer = Configuration.ConfigurationManager.AppSettings.Get("PageSize")

            Dim medialist = From item In r.Descendants("item") Select New MediaImage With {
             .Alt = item.Element("title"), .ImageUrl = item.Element("link"), .ThumbnailUrl = TryGetAttributeValue(item.Element(mediapfx + "thumbnail"), "url"), .Height = TryGetAttributeValue(item.Element(mediapfx + "thumbnail"), "height"), .Width = TryGetAttributeValue(item.Element(mediapfx + "thumbnail"), "width")} Take PageSize
            Return View(medialist)

        End Using

    End Function

PagedData类：

    Public Class PagedData
    Public Property TotalItems As Integer

    Public Property ItemsPerPage As Integer

    Public Property CurrentPage As Integer

    ReadOnly Property TotalPages As Integer
        Get
            Return Convert.ToInt32(Math.Ceiling(Convert.ToDecimal(TotalItems / ItemsPerPage)))
        End Get
    End Property

End Class

我的分页视图模型

 mvcPublic Class PagingViewModel
    Property Images As IEnumerable(Of MediaImage)
    Property Paging As Pager

End Class

分页助手：

   Public Class PagingHelper
    Public Shared Function PageLinks(ByVal html As HtmlHelper, ByVal Page As Pager, ByVal pageUrl As Func(Of Integer, String)) As MvcHtmlString
        Dim r As StringBuilder = New StringBuilder
        For i = 1 To Page.TotalPages
            Dim tag As TagBuilder = New TagBuilder("a")
            tag.MergeAttribute("href", pageUrl(i))
            tag.InnerHtml = i.ToString
            If i = Page.CurrentPage Then
                tag.AddCssClass("selected")
                r.Append(tag.ToString)

            End If
            Return MvcHtmlString.Create(r.ToString)
        Next

    End Function

Answer 1

我建议，在View中创建一个表并将YUI脚本添加到View.I使用它，它非常快。看一下demo：http://beckelman.net/post/2008/10/23/Client-Side-Table-Sorting-Paging-and-Filtering-with-jQuery-Demo.aspx

Answer 2

我使用Troy Goode的PagedList及其关联的帮助器实现了分页。我调用ToPagedList扩展方法并使用帮助器呈现分页链接。我确实下载了帮助程序的源并修改它，但是为了呈现跨度而不是分页链接的无序列表。

如何用Linq实现分页到Xml？

2 个答案: