当前文件： AjaxCheckUser/App_Code/logon.cs[2K，2009-6-12 11:31:35]，打开代码结构图

		            
 1using System;
 2using System.Data;
 3using System.Configuration;
 4using System.Web;
 5using System.Web.Security;
 6using System.Web.UI;
 7using System.Web.UI.WebControls;
 8using System.Web.UI.WebControls.WebParts;
 9using System.Web.UI.HtmlControls;
10using System.Data.SqlClient;
11//该源码下载自www.51aspx.com(５１ａｓｐｘ．ｃｏｍ)
12
13/**//// <summary>
14/// logon 的摘要说明
15/// </summary>
16public class logon
17...{
18    SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["dbuser"].ConnectionString);
19    public logon()
20    ...{
21        //
22        // TODO: 在此处添加构造函数逻辑
23        //
24    }
25    public bool chklogon(string uername, string password)
26    ...{
27    //    string name = uername;
28    //    string pwd = password;
29    //    String str = "select top 1 password from info where username='"+name+"'";
30    //    SqlCommand cmd = new SqlCommand(str, con);
31    //    try
32    //    {
33    //        con.Open();
34         
35    //        SqlDataReader resu = cmd.ExecuteReader();
36
37    //        if (resu.Read())
38    //        {
39    //            if (resu.GetValue(0).ToString() == pwd)
40    //            {
41    //                return true;
42    //            }
43    //            else
44    //            {
45    //                return false;
46    //            }
47    //        }
48    //51-A-s-p-x.com           
49    //    }
50    //    catch (Exception ex)
51    //    {
52    //        throw (ex);
53    //    }
54    //    finally
55    //    {
56    //        con.Close();
57    //    }
58
59    //    return false;
60    //    //if(name.Equals(str))
61        String T_name = uername;
62
63        String T_pass = password;
64
65        String sql = "select * from info where UserName='" + T_name + "' and Password='" + T_pass + "'";
66
67        SqlCommand cmd = new SqlCommand(sql, con);
68
69        try
70        ...{
71            con.Open();
72
73            SqlDataReader da = cmd.ExecuteReader();
74
75            if (da.Read())
76            ...{
77                return true;
78            }
79            else
80            ...{
81                return false;
82            }
83        }
84        catch (Exception ex)
85        ...{
86            throw (ex);
87        }
88        finally
89        ...{
90            con.Close();
91        }
92    }
93}
94