ASP.NET中用DataList作分页的核心程序

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.Sql;
using System.Data.SqlClient;
public partial class dataList : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
DB db = new DB();
SqlConnection conn = db.createConn();
conn.Open();

SqlDataAdapter sda = new SqlDataAdapter();
DataSet ds = new DataSet();
sda.SelectCommand = new SqlCommand("select * from [User]",conn);
sda.Fill(ds,"user");
//this.dl.DataSource=ds.Tables["user"].DefaultView;
//this.dl.DataBind();
//*****************************************
//核心程序:设置一个可分页的数据源Start
//*****************************************
PagedDataSource mydata = new PagedDataSource();
mydata.DataSource = ds.Tables["user"].DefaultView;
mydata.AllowPaging = true;
mydata.PageSize = 12;
//*****************End*********************

this.dl.DataSource = mydata;
this.dl.DataBind();
}
}