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();

    }

}

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