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用AspNetPager控件最详细的分页实现方法(亲自实践)

 2010-04-25 17:43:26 来源:WEB开发网   
核心提示:祝贺一下~好不容易把分页做出来了,之前都是用GridView自带的分页,用AspNetPager控件最详细的分页实现方法(亲自实践),版式难看不说,还极不优化,清爽超酷型~:Code<style> .anpager {}{ font-size:12px; } .anpager .cpb

祝贺一下~好不容易把分页做出来了。之前都是用GridView自带的分页,版式难看不说,还极不优化,一次取出所有记录,然后进行假分页。
现在用aspNetPager控件做出的真分页,就好多了,不过还有改进的地方,SQL语句如果换成存储过程效率会更高。

首先在SqlHelper.cs(DAL层中的数据库助手类,用于写可以复用的基本增删查改方法)中加上以下代码:

Code
/**//// <summary>
     /// 获取分页数据
     /// </summary>
     /// <param name="sql">sql语句</param>
     /// <param name="currentPage">当前页</param>
     /// <param name="pagesize">每页显示数</param>
     /// <param name="recordcount"></param>
     /// <returns></returns>
     public static DataSet GetPage(string sql, int currentPage, int pagesize, out int recordcount)
     {
       openCon();
       sqlDs.Clear();

     sqlDa = new SqlDataAdapter(sql, sqlConn);
       int startRow = (currentPage - 1) * pagesize;
       sqlDa.Fill(sqlDs, startRow, pagesize, "table");
       recordcount = GetPageRecord(sql);
       closeCon();

     return sqlDs;
     }

   //返回总的记录数
     public static int GetPageRecord(string sql)
     {
       openCon();
       sql = Regex.Replace(sql, "order by.*", "");
       sql = "select count(*) from (" + sql + ") as temp";
       sqlCmd = new SqlCommand(sql, sqlConn);
       int recordcount = int.Parse(sqlCmd.ExecuteScalar().ToString());
       closeCon();

     return recordcount;
     }

然后在BLL层新建一个PageManager.cs的分页操作类,封装一下DAL层方法:

Code
/**//// <summary>
     /// 获取分页数据
     /// </summary>
     /// <param name="sql">sql语句</param>
     /// <param name="currentPage">当前页</param>
     /// <param name="pagesize">每页显示数</param>
     /// <param name="recordcount"></param>
     /// <returns></returns>
     public static DataSet GetPage(string sql, int currentPage, int pagesize, out int recordcount)
     {
       return SQLHelper.GetPage(sql, currentPage, pagesize, out recordcount);
     }

asp.net需分页的数据绑定处是这样的:

Code
<asp:Repeater ID="repNewsList" runat="server">
   <ItemTemplate>
     <tr>
       <td align="center"><a href="list.aspx?caid=<%# Eval("caId") %>"><%# Eval("name") %></a></td>
       <td align="center"><%# Eval("createTime") %></td>
     </tr>
   </ItemTemplate>
</asp:Repeater> 

然后在绑定代码下方加上分页控件(当然这个可以随便放,怎么好看怎么放):

Code
<!--分页控件-->
     <div style="text-align:center; height:50px; line-height:50px;">
    
       <webdiyer:AspNetPager ID="AspNetPager1" runat="server" AlwaysShow="True" UrlPaging="true"
         FirstPageText="首页" LastPageText="末页" NextPageText="下一页" NumericButtonCount="5"
         onpagechanged="AspNetPager1_PageChanged" PagingButtonSpacing="10px" NumericButtonTextFormatString="[{0}]"
         PRevPageText="上一页" SubmitButtonText="Go" TextAfterPageIndexBox="页"
         TextBeforePageIndexBox="转到" ShowCustomInfoSection="Left"
         CustomInfoHTML="目前是第%CurrentPageIndex%页 / 总共%PageCount%页">
       </webdiyer:AspNetPager>
      
     </div>

最后在aspx.cs中加上数据的分页绑定方法(这里的SQL语句要根据列表显示的需要进行调整):

Code
/**//// <summary>
   /// 绑定带有分页的新闻列表
   /// </summary>
   public void BindRepeater()
   {
     int caid = int.Parse(Request.QueryString["caid"]);

   string Sql = "select * from news where caId=" + caid + " order by createTime desc";
     int CurrentPage = AspNetPager1.CurrentPageIndex;
     int PageSize = AspNetPager1.PageSize;
     int RecordCount;

   DataSet ds = PageManager.GetPage(Sql, CurrentPage, PageSize, out RecordCount);
     AspNetPager1.RecordCount = RecordCount;

   AspNetPager1.CustomInfoHTML += " 共" + RecordCount + "条新闻</b>";

   repNewsList.DataSource = ds;
     repNewsList.DataBind();
   }

别忘了,在page_load调用一下:

protected void Page_Load(object sender, EventArgs e)
   {
     if (!Page.IsPostBack)
     {
       BindRepeater();
     }
   }

还有分页控件的PageChanged事件里也调用一下:

protected void AspNetPager1_PageChanged(object sender, EventArgs e)
   {
     BindRepeater();
   }

最后再补充一个非常漂亮的翻页样式,清爽超酷型~:

Code
<style>
  
   .anpager
   {}{
     font-size:12px;
   }
   .anpager .cpb
   {}{
     background:#1F3A87 none repeat scroll 0 0;
     border:1px solid #CCCCCC;
     color:#FFFFFF;
     font-weight:bold;
     margin:5px 4px 0 0;
     padding:4px 5px 0;
   }
   .anpager a
   {}{
     background:#FFFFFF none repeat scroll 0 0;
     border:1px solid #CCCCCC;
     color:#1F3A87;
     margin:5px 4px 0 0;
     padding:4px 5px 0;
     text-decoration:none
   }
   .anpager a:hover
   {}{
     background:#1F3A87 none repeat scroll 0 0;
     border:1px solid #1F3A87;
     color:#FFFFFF;
   }

</style>

然后在AspNetPager中加上以下四个属性,搞定!
CSSClass="anpager"
CurrentPageButtonClass="cpb"
CustomInfoClass=""
CustomInfoTextAlign="Left"

OK,分页大功告成。 本人QQ:3053166 希望和.net爱好者交流~

Tags:AspNetPager 控件 详细

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