/// <summary>/// 分页信息/// </summary>public class PagingInfo{/// <summary>/// 显示连续页码数量/// </summary>public int ShowNum { get; set; }/// <summary>/// 记录总数/// </summary>public int TotalItems { get; set; }/// <summary>/// 每页记录数/// </summary>public int ItemsPerPage { get; set; }/// <summary>/// 当前页/// </summary>public int CurrentPage { get; set; }/// <summary>/// 是否显示第一页和最后一页/// </summary>private bool _IsShowFirstLast = true;public bool IsShowFirstLast { get { return _IsShowFirstLast; } set { _IsShowFirstLast = value; } }public int TotalPages{get { return (int)Math.Ceiling((decimal)TotalItems / ItemsPerPage); }}}

   /// <summary>/// 根据pageInfo 生成一个分页控件/// </summary>/// <param name="html"></param>/// <param name="pageInfo"></param>/// <param name="pageUrl"></param>/// <returns></returns>public static MvcHtmlString PageLinks(this HtmlHelper html, PagingInfo pageInfo, Func<int, string> pageUrl){StringBuilder result = new StringBuilder(1000);bool isEven = (pageInfo.ShowNum & 1).Equals(0);int middleCeilingNum = (int)Math.Ceiling((decimal)pageInfo.ShowNum / 2);int middleFloorNum = (int)Math.Floor((decimal)pageInfo.ShowNum / 2);middleFloorNum = middleFloorNum == 0 ? 1 : middleFloorNum;int beginIndex = 1;//控件开始页数int endIndex = 1;//控件结束页数if (pageInfo.ShowNum >= pageInfo.TotalPages){beginIndex = 1;endIndex = pageInfo.TotalPages;}else{if (!isEven){beginIndex = pageInfo.CurrentPage <= middleCeilingNum? 1: pageInfo.CurrentPage - middleFloorNum;endIndex = pageInfo.CurrentPage <= middleCeilingNum? pageInfo.ShowNum: pageInfo.CurrentPage + middleFloorNum;beginIndex = pageInfo.CurrentPage + middleCeilingNum > pageInfo.TotalPages? pageInfo.TotalPages - pageInfo.ShowNum + 1: beginIndex;endIndex = pageInfo.CurrentPage + middleCeilingNum > pageInfo.TotalPages? pageInfo.TotalPages: endIndex;}else{beginIndex = pageInfo.CurrentPage <= middleCeilingNum ? 1 : pageInfo.CurrentPage - middleFloorNum + 1;endIndex = pageInfo.CurrentPage <= middleCeilingNum ? pageInfo.ShowNum : pageInfo.CurrentPage + middleFloorNum;beginIndex = pageInfo.CurrentPage + middleCeilingNum > pageInfo.TotalPages? pageInfo.TotalPages - pageInfo.ShowNum + 1: beginIndex;endIndex = pageInfo.CurrentPage + middleCeilingNum > pageInfo.TotalPages? pageInfo.TotalPages: endIndex;}}beginIndex = pageInfo.CurrentPage == pageInfo.ShowNum - middleFloorNum + 1? beginIndex - 1 : beginIndex;beginIndex = pageInfo.CurrentPage == pageInfo.TotalPages + pageInfo.ShowNum - middleFloorNum? beginIndex + 1 : beginIndex;endIndex = pageInfo.CurrentPage == pageInfo.TotalPages - middleFloorNum - 1? endIndex + 1 : endIndex;if (pageInfo.TotalPages <= pageInfo.ShowNum + 2){result.Append(GetMiddle(pageInfo, beginIndex, endIndex, pageUrl));}else{//前一页if (pageInfo.CurrentPage != 1)result.Append(GetUrl(pageInfo, pageUrl, pageInfo.CurrentPage - 1, "上一页").ToString());//第一页if (pageInfo.CurrentPage > middleCeilingNum + 1 && pageInfo.IsShowFirstLast)result.Append(GetUrl(pageInfo, pageUrl, 1, "1").ToString());if (pageInfo.CurrentPage > middleCeilingNum && pageInfo.CurrentPage != pageInfo.ShowNum - middleFloorNum + 1)result.Append(GetSplitStr().ToString());result.Append(GetMiddle(pageInfo, beginIndex, endIndex, pageUrl));if (pageInfo.CurrentPage < pageInfo.TotalPages - middleFloorNum && pageInfo.CurrentPage != pageInfo.TotalPages - middleFloorNum - 1)result.Append(GetSplitStr().ToString());//最后一页if (pageInfo.CurrentPage < pageInfo.TotalPages - (middleFloorNum + 1) && pageInfo.IsShowFirstLast)result.Append(GetUrl(pageInfo, pageUrl, pageInfo.TotalPages, pageInfo.TotalPages + "").ToString());//下一页if (pageInfo.TotalPages != 1 && (pageInfo.CurrentPage != pageInfo.TotalPages))result.Append(GetUrl(pageInfo, pageUrl, pageInfo.CurrentPage + 1, "下一页").ToString());}return MvcHtmlString.Create(result.ToString());}/// <summary>/// 特殊页面(第一页，前一页，后一页，最后一页)的连接生成/// </summary>/// <param name="pageInfo"></param>/// <param name="pageUrl"></param>/// <param name="i"></param>/// <param name="ShowTag">显示文字</param>/// <returns></returns>private static TagBuilder GetUrl(PagingInfo pageInfo, Func<int, string> pageUrl, int i, string ShowTag){TagBuilder tag = new TagBuilder("a");tag.MergeAttribute("href", pageUrl(i));tag.InnerHtml = ShowTag;return tag;}private static TagBuilder GetSplitStr(){TagBuilder tag = new TagBuilder("span");tag.MergeAttribute("class", "psplit");tag.InnerHtml = "...";return tag;}/// <summary>/// /// </summary>/// <returns></returns>private static string GetMiddle(PagingInfo pageInfo, int beginIndex, int endIndex, Func<int, string> pageUrl){StringBuilder result = new StringBuilder(300);for (int i = beginIndex; i <= endIndex; i++){TagBuilder tag = new TagBuilder("a");tag.MergeAttribute("href", pageUrl(i));tag.InnerHtml = i.ToString();if (i == pageInfo.CurrentPage)tag.AddCssClass("selected");result.Append(tag.ToString());}return result.ToStr();}

public class PhotoAlbumReply : IReply{public string Id { get; set; }public string Content { get; set; }}

 public class PhotoAlbumReplyViewModel{public IEnumerable<PhotoAlbumReply> PhotoAlbumReplys { get; set; }public PagingInfo PagingInfo { get; set; }}

public ActionResult List(int page){int pageSize = 20;int count = 100;//这个自己去实现IEnumerable<PhotoAlbumReply> PhotoAlbumReplys = null;//这个自己去实现return View(new PhotoAlbumReplyViewModel(){PhotoAlbumReplys = PhotoAlbumReplys,PagingInfo = new PagingInfo(){IsShowFirstLast = true,ShowNum = 4,CurrentPage = page,ItemsPerPage = pageSize,TotalItems = count}});}

@{ViewBag.Title = "List";
}
<style type="text/css">.pager a {padding: 10px;}.pager .selected {padding: 10px;color: red;}
</style>
@model ViewModel.PhotoAlbumReplyViewModel@if (null != Model.PhotoAlbumReplys && Model.PhotoAlbumReplys.Count() > 0){
<table border="1"><tr><td>ID</td><td>content</td></tr>foreach (var item in Model.PhotoAlbumReplys){<tr><td>@item.Id</td><td>@item.TargetId</td><td>@item.Content</td>  </tr>}    </table>
}
<div class="pager"> @Html.PageLinks(Model.PagingInfo, x => Url.Action("List", "Photo", new {page=x})) </div>