1using System;
 2using System.Data;
 3using System.Configuration;
 4using System.Collections;
 5using System.Web;
 6using System.Web.Security;
 7using System.Web.UI;
 8using System.Web.UI.WebControls;
 9using System.Web.UI.WebControls.WebParts;
10using System.Web.UI.HtmlControls;
11using WebQuest;
12using System.Data.OleDb;
13public partial class Admin_admin_subjects : System.Web.UI.Page
14...{
15    public string _id = null;
16    protected void Page_Load(object sender, EventArgs e)
17    ...{
18        _id = Request.QueryString["id"];
19        if (!IsPostBack)
20        ...{
21            Subjects myObj = new Subjects();
22            myObj.SubjectId = int.Parse(_id);
23            OleDbDataReader myReader = myObj.RetrieveById();
24            while (myReader.Read())
25            ...{ txtSubjectName.Text = myReader["subjectname"].ToString(); txtSubjectDescription.Text = myReader["description"].ToString(); } myReader.Close();
26        }
27    }
28    protected void btnMod_Click(object sender, EventArgs e)
29    ...{
30        Subjects myObj = new Subjects();
31        myObj.SubjectId = int.Parse(_id);
32        myObj.SubjectName = txtSubjectName.Text;
33        myObj.Description = txtSubjectDescription.Text;
34        myObj.Update();
35        Label1.Text = "更新成功";
36
37    }
38}
39