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 Manager_Default : System.Web.UI.Page
13...{
14    private readonly string txtName = ConfigurationManager.AppSettings["userName"].ToString();
15    private readonly string txtPass = ConfigurationManager.AppSettings["userPass"].ToString();
16    private string txtCheckImg = string.Empty;
17    protected void Page_Load(object sender, EventArgs e)
18    ...{
19
20    }
21    protected void ImageCheck_Click(object sender, ImageClickEventArgs e)
22    ...{
23        string inputName = userName.Value.ToString();
24        string inputPass = userPass.Value.ToString();
25        string inputCheck=userImg.Value.ToString();
26        if (Session["CheckCode"] != null)
27        ...{
28
29            txtCheckImg = Session["CheckCode"].ToString();
30            if (txtName == inputName && txtPass == inputPass && txtCheckImg == inputCheck)
31            ...{
32                Session["name"] = txtName;
33                Response.Redirect("Manager.aspx");
34
35            }
36        }
37        else ...{
38
39            Response.Redirect("Default.aspx");
40        
41        }
42        
43    }
44}
45