Admin/ModifyCLasslInfo.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 Admin_ModifyCLasslInfo : System.Web.UI.Page
{
    SqlHelper data = new SqlHelper();
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
           
            SqlDataReader dr = data.GetDataReader("select * from ClassInfo where id=" + Request.QueryString["id"].ToString());
            if (dr.Read())
            {

                TextBox2.Text = dr["name"].ToString();
                TextBox1.Text = dr["Tel"].ToString();
              
                TextBox4.Text = dr["RenShu"].ToString();

                Label1.Text = dr["ZhuanYeName"].ToString();
       
            }
        }
    }
   
    protected void Button1_Click(object sender, EventArgs e)
    {

        data.RunSql("update ClassInfo set  name='" + TextBox2.Text + "',Tel='" + TextBox1.Text + "',RenShu='"+TextBox4.Text+"'   where id=" + Request.QueryString["id"].ToString());

        data.RunSql("update   dbo.Student set BanJI='" + TextBox2.Text + "' where BanJIId='" + Request.QueryString["id"].ToString() + "'");

        data.RunSql("update   Teachter set ClassInfoName='" + TextBox2.Text + "' where ClassInfoId='" + Request.QueryString["id"].ToString() + "'");

        Alert.AlertAndRedirect("修改成功", "ClassInfoManger.aspx");
    }
}