LiuYan.aspx.cs

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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.SqlClient;
public partial class LiuYan : System.Web.UI.Page
{
    DB data = new DB();
    protected void Page_Load(object sender, System.EventArgs e)
    {
        if (!this.IsPostBack)
        {
            if (Session["username"] != null)
            {
                TextBox1.Text = Session["username"].ToString();
            }
            else
            {
                TextBox1.Text = "请登录";
            }
            gvbind();
        }
    }
    private void gvbind()
    {
        string sqlstr = "";
        sqlstr = "select * from userliuyanban";
        SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);

        con.Open();

        SqlDataAdapter sda = new SqlDataAdapter(sqlstr, con);

        DataSet ds = new DataSet();
        sda.Fill(ds);
        PagedDataSource objPds = new PagedDataSource();
        objPds.DataSource = ds.Tables[0].DefaultView;

        objPds.AllowPaging = true;
        objPds.PageSize = 5;

        int CurPage;
        if (Request.QueryString["Page"] != null)
            CurPage = Convert.ToInt32(Request.QueryString["Page"]);
        else
            CurPage = 1;

        objPds.CurrentPageIndex = CurPage - 1;
        lblCurrentPage.Text = CurPage.ToString();//当面页
        lblSumPage.Text = objPds.PageCount.ToString();//总共多少页

        if (!objPds.IsFirstPage)
        {
            this.hyfirst.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=" + 1;//首页