admin/kecheng_update.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 admin_kecheng_update : System.Web.UI.Page
{
    DataCode dataconn = new DataCode();
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            dataconn.DownList(DropDownList1, "select * from tb_Profession", "Name", "id");
            SqlConnection con = dataconn.getcon();
            con.Open();
            SqlDataAdapter mydataadapter = new SqlDataAdapter("select * from tb_Lesson where ID="
                + Request["id"], con);
            DataSet mydataset = new DataSet();
            mydataadapter.Fill(mydataset, "tb_lesson");
            DataRowView rowview = mydataset.Tables["tb_lesson"].DefaultView[0];
            this.TextBox1.Text = Convert.ToString(rowview["Name"]);
            this.DropDownList1.Text = Convert.ToString(rowview["ofProfession"]);
            con.Close();
        }
    }
    protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
    {
        string getid = Request.QueryString["ID"].ToString();
        dataconn.dataos("update tb_Lesson set Name='" + this.TextBox1.Text + "',ofProfession='"
            + this.DropDownList1.Text + "' where  ID='" + getid + "'");
        Page.Response.Redirect("kecheng_xinxi.aspx");
    }
    protected void ImageButton2_Click(object sender, ImageClickEventArgs e)
    {
        Page.Response.Redirect("kecheng_xinxi.aspx");
    }
}