散分：分享一个通用分页函数
 
功能：
1.每页设置显示9页，超过9页，点5页后的+1页显示（可以随便修改）
2.CSS样式自己可以设置
3.无任何咋代码产生，利于搜索引擎优化
4.至于性能怎么样大家可以试下

演示地址：http://www.dzswej.com/newslist_ej4.html


 PagedDataSource objPDS;
......

//分页程序
  objPDS = new PagedDataSource();
  objPDS.DataSource = dtTable.DefaultView;//绑定数据源
  objPDS.AllowPaging = true;
  objPDS.PageSize =10;//分页数目
  int curPage;
  int cshi;
  int jshi;
  int zyes = Int32.Parse( objPDS.PageCount.ToString());
  this.tjixx.Text = "总共<font color=red>" + dtTable.Rows.Count + "</font>条信息";
  this.tjixx.Text += "|共<font color=red>" + zyes + "</font>页";
  if (Request.QueryString["Page"] != null)
  {
  if (Int32.Parse(Request.QueryString["Page"]) > zyes)
  curPage = zyes;
  else
  curPage = Int32.Parse(Request.QueryString["Page"]);
  }

  else
  {
  curPage = 1;
  }
   

  if (zyes <= 9)
  {
  cshi = 1;
  jshi = zyes;

  }
  else
  {
  if (curPage <= 5)
  {
  cshi = 1;
  jshi = 9;

  }

  else
  {

  cshi = curPage - 4;
  int jshils = curPage + 4;
  if (jshils > zyes)
  jshi = zyes;
  else
  jshi=curPage + 4;


  }
  }
  objPDS.CurrentPageIndex = curPage - 1;
  StringBuilder m_strPageInfo = new StringBuilder(); 
  for (int i = cshi; i <=jshi; i++)
  {
  if (i == Int32.Parse(curPage.ToString()))
  m_strPageInfo.Append("<span class=\"dqye\"><strong>" + i + "</strong></span> ");
  else
  m_strPageInfo.Append("<span class=\"qtye\"><strong><a href=\"newslist_ej" + Request.QueryString["wzcat"] + "_Page" + i + ".html\">" + i + "</a></strong></span> ");
  }
  this.yemsl.Text = m_strPageInfo.ToString();

  if (!objPDS.IsFirstPage)
  {


  linkPre.NavigateUrl = "newslist_ej" + Request.QueryString["wzcat"] + "_Page" + Convert.ToString(curPage - 1);
  linkPre.NavigateUrl += ".html";
  }
  if (!objPDS.IsLastPage)
  {
  linkNext.NavigateUrl = "newslist_ej" + Request.QueryString["wzcat"] + "_Page" + Convert.ToString(curPage + 1);
  linkNext.NavigateUrl += ".html";
  }
  linkFirstPage.NavigateUrl = "newslist_ej" + Request.QueryString["wzcat"] + "_Page1";
  linkFirstPage.NavigateUrl += ".html";
  linkEndPage.NavigateUrl = "newslist_ej" + Request.QueryString["wzcat"] + "_Page" + objPDS.PageCount.ToString();
  linkEndPage.NavigateUrl += ".html";
  this.DataList4.DataSource = objPDS;//绑定分页的数据