.NET基于分页控件实现真分页功能

转自：http://myroom.javaeye.com/blog/542825

关键字: .net

下面利用分页控件实现分页功能。分页控件下载网址：http://www.webdiyer.com/ 从该网址下载AspNetPager.dll后，在VS2008中在工具箱中，右键 —> 选择项 —> 浏览 找到AspNetPager.dll添加至工具箱中,在工具箱中可以找到下图所示 


数据绑定用Reapter控件
●把两个控件拖拽至Web窗体中（如：test.aspx）。
●AspNetPager控件的属性中可以设置每页显示记录数（如图）。

 
●存储过程中的代码代码如下

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:      myroom
-- Create date: 2009-12-6
-- Description: 新闻表的分页
-- =============================================
ALTER PROCEDURE [dbo].[prceNewsPagerSelectAll]
@startIndex int,
@endIndex int
AS
BEGIN
    with temptbl as(
    select ROW_NUMBER() OVER (ORDER BY id desc)AS Row,* from news
)
    SELECT Row,title FROM temptbl where Row between @startIndex and @endIndex
END

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:		myroom
-- Create date: 2009-12-6
-- Description:	新闻表的分页
-- =============================================
ALTER PROCEDURE [dbo].[prceNewsPagerSelectAll]
@startIndex int,
@endIndex int
AS
BEGIN
	with temptbl as(
	select ROW_NUMBER() OVER (ORDER BY id desc)AS Row,* from news
)
	SELECT Row,title FROM temptbl where Row between @startIndex and @endIndex
END

●执行该存储过程

exec prceNewsPagerSelectAll 1,5

exec prceNewsPagerSelectAll 1,5

（从news 表中先出第1至第5条记录）查看结果。
●数据访问层中

//选出新闻表中总记录个数
       public int NewsRecordCount()
       {
           string cmdText="select * from news";
           int rc = (sqlhelper.ExecuteQuery(cmdText, CommandType.Text)).Rows .Count ;
           return rc;
       }
       //新闻表分页功能
       public DataTable SelectNewsPager(int startIndex, int endIndex)
       {
           DataTable dt = new DataTable();
           string cmdText = "prceNewsPagerSelectAll";
           SqlParameter[] paras = new SqlParameter[] {
               new SqlParameter ("@startIndex",startIndex ),
               new SqlParameter ("@endIndex",endIndex )
           };
           dt = sqlhelper.ExecuteQuery(cmdText, paras, CommandType.StoredProcedure);
           return dt;
       }

 //选出新闻表中总记录个数
        public int NewsRecordCount() 
        {
            string cmdText="select * from news";
            int rc = (sqlhelper.ExecuteQuery(cmdText, CommandType.Text)).Rows .Count ;
            return rc;
        }
        //新闻表分页功能
        public DataTable SelectNewsPager(int startIndex, int endIndex)
        {
            DataTable dt = new DataTable();
            string cmdText = "prceNewsPagerSelectAll";
            SqlParameter[] paras = new SqlParameter[] { 
                new SqlParameter ("@startIndex",startIndex ),
                new SqlParameter ("@endIndex",endIndex )
            };
            dt = sqlhelper.ExecuteQuery(cmdText, paras, CommandType.StoredProcedure);
            return dt;
        }

●后台代码中(test.aspx.cs)

protected void Page_Load(object sender, EventArgs e)
{
    if (!Page .IsPostBack )
    {
         int totalRecord = new NewsDAO().NewsRecordCount();//获取总记录数
        AspNetPager1.RecordCount = totalRecord;//对AspNetPager属性进行设置
        databind();
    }
}
//AspNetPager1控件的PageChanged事件
protected void AspNetPager1_PageChanged(object sender, EventArgs e)
{
    databind();
}
//数据绑定方法
private void databind()
{
    int startIndex = AspNetPager1.StartRecordIndex;//StartRecordIndex是AspNetPager固有属性
    int endIndex = AspNetPager1.EndRecordIndex;//EndRecordIndex是AspNetPager固有属性
    //数据绑定
    Repeater1.DataSource = new NewsDAO().SelectNewsPager(startIndex, endIndex);
    Repeater1.DataBind();
}

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page .IsPostBack )
        {             
             int totalRecord = new NewsDAO().NewsRecordCount();//获取总记录数
            AspNetPager1.RecordCount = totalRecord;//对AspNetPager属性进行设置
            databind();
        }
    }
    //AspNetPager1控件的PageChanged事件
    protected void AspNetPager1_PageChanged(object sender, EventArgs e)
    {
        databind();
    }
    //数据绑定方法
    private void databind()
    {
        int startIndex = AspNetPager1.StartRecordIndex;//StartRecordIndex是AspNetPager固有属性
        int endIndex = AspNetPager1.EndRecordIndex;//EndRecordIndex是AspNetPager固有属性
        //数据绑定
        Repeater1.DataSource = new NewsDAO().SelectNewsPager(startIndex, endIndex);
        Repeater1.DataBind();
    }

●效果图如下： 

 

●对该控件的属性进行设置还有更多效果：