jieshu.aspx.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;

public partial class jieshu : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            DataBind();
        }
        DataSet ds = new DataSet();
        using (SqlConnection sqlconn = DB.con())
        {
            SqlDataAdapter sqld = new SqlDataAdapter("select * from book where zhuangtai='是' order by beijie desc", sqlconn);
            sqld.Fill(ds);
        }

        string[] key = { "no" };
        gvbeijie.DataKeyNames = key;
        //GridView绑定数据源
        gvbeijie.DataSource = ds.Tables[0].DefaultView;//指定GridView的数据源
        gvbeijie.DataBind();
    }
    public void DataBind()
    {
        DataSet ds = new DataSet();
        using (SqlConnection sqlconn = DB.con())
        {
            SqlDataAdapter sqld = new SqlDataAdapter("select * from book where zhuangtai='否' order by beijie desc", sqlconn);
            sqld.Fill(ds);
        }
         
        string[] key = { "no" };
        gvjieyue.DataKeyNames = key;
        //GridView绑定数据源
        gvjieyue.DataSource = ds.Tables[0].DefaultView;//指定GridView的数据源
        gvjieyue.DataBind();
    }
    protected void btnSure_Click(object sender, EventArgs e)
    {
        if (txtReaderID.Text == "")
        {
            Response.Write("<script>alert('读者编号不能为空！')</script>");
        }
        else
        {
            SqlConnection con = DB.con();
            SqlCommand cmd = new SqlCommand();
            cmd.Connection = con;
            con.Open();
            cmd.CommandText = "select * from reader where no='" + txtReaderID.Text + "'";
            SqlDataReader sqldatareader = cmd.ExecuteReader();
            if (sqldatareader.Read())