当前文件： MultiuserGuestBook/del.aspx.cs[1K，2009-6-12 11:47:56]，打开代码结构图

		            
 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;
11
12public partial class del : System.Web.UI.Page
13...{
14    public string useridcookies;
15    public string admcookies;
16    public string userid;
17    public string id;
18    protected void Page_Load(object sender, EventArgs e)
19    ...{
20        try
21        ...{//判断Cookies是否存在，不存在会引起异常，所以这里用了个try
22            useridcookies = Request.Cookies["userid"].Value;
23        }
24        catch
25        ...{
26            useridcookies = "nothing";
27        }
28        try
29        ...{//判断Cookies是否存在，不存在会引起异常，所以这里用了个try
30            admcookies = Request.Cookies["adm"].Value;
31        }
32        catch
33        ...{
34            admcookies = "nothing";
35        }
36        userid = Request.QueryString["userid"];
37        id = Request.QueryString["id"];
38        if ((useridcookies == userid) || (admcookies == "load"))
39        ...{
40            fvdel.DataSource = db.ds("select * from book where id=" + id, "re").DefaultView;
41            fvdel.DataBind();
42        }
43        else
44        ...{
45            Response.Write("<script>alert('您无权删除该留言！');history.go(-1)</script>");            
46        }
47    }
48    protected void btndel_Click(object sender, EventArgs e)
49    ...{
50        if (db.doData("delete book where id=" + id))
51        ...{
52            Response.Write("<script>alert('留言删除成功！')</script>");
53            Response.Redirect("index.aspx?userid=" + userid);
54        }
55    }
56}
57