mvc 自定义分页控件

参考效果：
　

参考代码：

/// <summary>
      /// 分页
      /// </summary>
      /// <param name="helper">helper 对象</param>
      /// <param name="currentPageIndex">当前页</param>
      /// <param name="pageSize">显示条数</param>
      /// <param name="recordCount">总条数</param>
      /// <param name="pageCount">总页数</param>
      /// <returns>html代码</returns>
      public static MvcHtmlString Pager(this HtmlHelper helper, long currentPageIndex, long pageSize, long recordCount, long pageCount)
      {
          if (recordCount == 0)
          {
              return null;
          }
          int btnCount = 7;
          TagBuilder builder = new TagBuilder("div");
          builder.AddCssClass("page");
          builder.InnerHtml = GetNormalPage(currentPageIndex, pageSize, recordCount, pageCount, btnCount);
          return MvcHtmlString.Create(builder.ToString(TagRenderMode.Normal));
      }
      /// <summary>
      /// 获取普通分页
      /// </summary> 
      private static string GetNormalPage(long currentPageIndex, long pageSize, long recordCount, long pageCount, int btnCount)
      {
          StringBuilder url = new StringBuilder();
          url.Append(HttpContext.Current.Request.Url.AbsolutePath + "?page={0}");
          NameValueCollection collection = HttpContext.Current.Request.QueryString;
          string[] keys = collection.AllKeys;
          for (int i = 0; i < keys.Length; i++)
          {
              if (keys[i].ToLower() != "page")
                  url.AppendFormat("&{0}={1}", HttpUtility.UrlEncode(keys[i]), HttpUtility.UrlEncode(collection[keys[i]]));
          }
          StringBuilder sb = new StringBuilder();
          sb.AppendFormat("总共有<i class='nochange'>{0}</i>条记录</span>", recordCount);
          if (currentPageIndex > 1)
          {
              string url1 = string.Format(url.ToString(), currentPageIndex - 1);
              sb.AppendFormat(" <a href=\"{0}\"><span> <<</span></a>", url1);
          }
          else
              sb.Append(" <span><<</span>");
 
          sb.Append(GetNumericPage(currentPageIndex, pageSize, recordCount, pageCount, url.ToString(), btnCount));
          if (currentPageIndex < pageCount)
          {
              string url1 = string.Format(url.ToString(), currentPageIndex + 1);
              sb.AppendFormat(" <a href=\"{0}\"><span>>> </span></a>", url1);
          }
          else
              sb.Append(" <span>>></span>");
          return sb.ToString();
      }
 
      /// <summary>
      /// 获取数字分页
      /// </summary>
      /// <param name="currentPageIndex">当前页码</param>
      /// <param name="pageSize">每页显示条数</param>
      /// <param name="recordCount">数据总条数</param>
      /// <param name="pageCount">总页数</param>
      /// <param name="url">地址</param>
      /// <param name="btnCount">没有按钮显示个数</param>
      /// <returns></returns>
      private static string GetNumericPage(long currentPageIndex, long pageSize, long recordCount, long pageCount, string url, int btnCount)
      {
          int start = btnCount / 2;
          int end = btnCount - 1;
          long beginNum = currentPageIndex - start > pageCount - end ? pageCount - end : currentPageIndex - start;
          if (beginNum < 1)
          {
              beginNum = 1;
          }
          long endNum = beginNum + btnCount > pageCount ? pageCount : beginNum + end;
 
          StringBuilder sb = new StringBuilder();
          for (long i = beginNum; i <= endNum; i++)
          {
              if (i == currentPageIndex)
                  sb.AppendFormat(" <span class=\"checked\">{0}</span>", currentPageIndex); 
              else
              {
                  string url1 = PublicVars.GetNewURL(string.Format(url.ToString(), i));
                  sb.AppendFormat(" <a  href=\"{0}\"><span>{1}</span></a>", url1, i); 
              }
          }
          return sb.ToString();
      }
      #endregion　