1using System;
 2using System.Text;
 3using System.Data;
 4using System.Data.SqlClient;
 5using System.Configuration;
 6using System.Collections;
 7using System.Web;
 8using System.Web.Security;
 9using System.Web.UI;
10using System.Web.UI.WebControls;
11using System.Web.UI.WebControls.WebParts;
12using System.Web.UI.HtmlControls;
13
14//该源码下载自www.51aspx.com(５１ａｓｐｘ．ｃｏｍ)
15
16public partial class admin_login : System.Web.UI.Page
17...{
18    protected void Page_Load(object sender, EventArgs e)
19    ...{
20
21    }
22    protected void Button1_Click(object sender, EventArgs e)
23    ...{
24        string usn, pwd, vstr;
25        usn = TextBox1.Text;
26        pwd = fun.Encrypt(TextBox2.Text,1);
27        vstr = vnumber.Text;
28        //Response.Write(vstr.CompareTo(Session["Vnumber"].ToString()));
29        if (vstr.CompareTo(Session["Vnumber"].ToString()) == 1)
30        ...{
31            MessageBox.Show(this, "您输入的验证码不正确，请重新输入！");
32            return;
33        }
34        if (Exists(usn, pwd))
35        ...{
36            MessageBox.ResponseScript("top.location.href='index.htm'"); 
37        }
38        else
39      ...{ MessageBox.Show(this, "您输入的密码不正确，请重新输入！"); }
40    }
41    /**//// <summary>
42    /// 是否存在该记录
43    /// </summary>
44    public bool Exists(string name, string pwd)
45    ...{
46        StringBuilder strSql = new StringBuilder();
47        strSql.Append("select id from member");
48        strSql.Append(" where name= @name and password=@password and jibie=1");
49        SqlParameter[] parameters = ...{
50                    new SqlParameter("@name", SqlDbType.NVarChar),
51                    new SqlParameter("@password", SqlDbType.NVarChar)
52                };
53        parameters[0].Value = name;
54        parameters[1].Value = pwd;
55        DataTable dt = DbHelperSQL.Query(strSql.ToString(),parameters).Tables[0];
56        if (dt.Rows.Count > 0)
57        ...{
58            Session["adminid"] = dt.Rows[0]["id"];
59            return true;
60        }
61        else
62        ...{
63            return false;
64        }
65    }
66
67}
68