guest.aspx.cs

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using System;
using System.Collections;
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 guest : System.Web.UI.Page
{
    string curPage;
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            this.lblPageCur.Text = "1";//不能放到dataGridBind()后面,不然lblPageCur.Text没有被初始化,出错
            dataGridBind();
        }
    }
    public void dataGridBind()
    {
        curPage = this.lblPageCur.Text;
        SqlConnection conn = DB.createCon();
        SqlCommand cmd = new SqlCommand();
        cmd.CommandText = "select * from guest order by postTime desc";
        cmd.Connection = conn;
        SqlDataAdapter sda = new SqlDataAdapter();
        sda.SelectCommand = cmd;
        DataSet ds = new DataSet();
        sda.Fill(ds, "guest");
        PagedDataSource pds = new PagedDataSource();
        pds.AllowPaging = true;
        pds.PageSize = 3;
        pds.DataSource = ds.Tables["guest"].DefaultView;
        pds.CurrentPageIndex = Convert.ToInt32(curPage) - 1;
        this.lblPageTotal.Text = pds.PageCount.ToString();
        this.Button1.Enabled = true;
        this.Button2.Enabled = true;
        if (curPage == "1")
        {
            this.Button1.Enabled = false;
        }
        if (curPage == pds.PageCount.ToString())
        {
            this.Button2.Enabled = false;
        }
        this.DataList1.DataSource = pds;
        this.DataList1.DataBind();

        cmd.CommandText = "select count(*) from guest";
        this.lblMesTotal.Text = Convert.ToString(cmd.ExecuteScalar());

        int a = pds.PageCount;
        for (int i = 1; i <= a; i++)
        {
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