ASP.NET中分页显示

分页详解，ASP.NET书本 “数据空间应用”

（1）使用GridView控件分页显示 步奏：1.添加GridView控件 2.将GrideView控件的AllowPaging属性设置为True，表示允许分页 3.将PageSize属性设置一个数字，用来控制每页中显示的记录数 4.最后在GridView控件的PageIndexChanging事件中设置GridView控件的PageIndex属性为当前页的索引值，并重新绑定GridView控件

（2）DataList控件中的数据

using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
Bind();//数据绑定
}
}
//进行数据绑定的方法
public void Bind()
{
int CurrentPage = Convert.ToInt32(labNowPage.Text);  ///labNowPage标签  记录当前页码
PagedDataSource ps = new PagedDataSource();//生成PagedDataSource的实例
//实例化SqlConnection对象
SqlConnection sqlCon = new SqlConnection();
//实例化SqlConnection对象连接数据库的字符串
sqlCon.ConnectionString = "server=.;uid=sa;pwd=;database=db_09";
//定义SQL语句
string SqlStr = "select * from tb_Student";
//实例化SqlDataAdapter对象
SqlDataAdapter da = new SqlDataAdapter(SqlStr, sqlCon);
//实例化数据集DataSet
DataSet ds = new DataSet();
da.Fill(ds, "tb_Student");
ps.DataSource = ds.Tables["tb_Student"].DefaultView;
ps.AllowPaging = true; //是否可以分页
ps.PageSize = 2; //显示的数量
ps.CurrentPageIndex = CurrentPage - 1; //取得当前页的页码
lnkbtnFront.Enabled = true;
lnkbtnFirst.Enabled = true;
lnkbtnNext.Enabled = true;
lnkbtnLast.Enabled = true;
if (CurrentPage == 1)
{
lnkbtnFirst.Enabled = false;//不显示第一页按钮
lnkbtnFront.Enabled = false;//不显示上一页按钮
}
if (CurrentPage == ps.PageCount)
{
lnkbtnNext.Enabled = false;//不显示下一页
lnkbtnLast.Enabled = false;//不显示最后一页
}
this.labCount.Text = Convert.ToString(ps.PageCount);//记录总页数
this.DataList1.DataSource = ps;
this.DataList1.DataKeyField = "ID";
this.DataList1.DataBind();
}
//首页
protected void lnkbtnFirst_Click(object sender, EventArgs e)
{
this.labNowPage.Text = "1";
this.Bind();
}
//上一页
protected void lnkbtnFront_Click(object sender, EventArgs e)
{
this.labNowPage.Text = Convert.ToString(Convert.ToInt32(this.labNowPage.Text) - 1);
this.Bind();
}
//下一页
protected void lnkbtnNext_Click(object sender, EventArgs e)
{
this.labNowPage.Text = Convert.ToString(Convert.ToInt32(this.labNowPage.Text) + 1);
this.Bind();
}
//尾页
protected void lnkbtnLast_Click(object sender, EventArgs e)
{
this.labNowPage.Text = this.labCount.Text;
this.Bind();
}
}