Click here to Skip to main content
12,403,811 members (68,501 online)
Rate this:
Please Sign up or sign in to vote.
See more: C# C#4.0
Hi all, a have a 1 file database xml, I add it to my Project Winform C#, now I want when I debug it show a value of element/node bookID had Encryption by method Encryption MD5 or SHA in textbox, Are you understand ? Now here is xml file, picture demo and code, please fix for me, thank very much:
<?xml version="1.0" encoding="utf-8"?>

Here is a picture when I debug, it haven't still encryption bookID:

Here is picture required I want when debug finish:

Here is my code:

private void Form1_Load(object sender, EventArgs e)
           XmlDocument xml = new XmlDocument();
           XmlNodeList xnList = xml.SelectNodes("/data[bookID]");
           foreach (XmlNode xn in xnList)
               XmlNode encryption = xn.SelectSingleNode("bookID");
               if (encryption != null)
                   string pass = encryption["bookID"].InnerText;
                   XmlNodeList CNodes = xn.SelectNodes("book");
                   foreach (XmlNode node in CNodes)
                       XmlNode encryption1 = node.SelectSingleNode("bookID");
                       if (encryption1 != null)
                           string md5 = EncrypSHA1(encryption1["bookID"].InnerText);
       private void LoadXml(string FILE_NAME)
           if (!File.Exists(FILE_NAME))
               MessageBox.Show("No find database!", "Notify!", MessageBoxButtons.OKCancel, MessageBoxIcon.Error);
           StreamReader sr = File.OpenText(FILE_NAME);
           String input;
           input = sr.ReadToEnd();
           textBox1.Text = input;
       private static string EncrypSHA1(string sMaHoa)
           UTF32Encoding utf32 = new UTF32Encoding();
           byte[] bytes = utf32.GetBytes(sMaHoa);
           SHA1 md = new SHA1CryptoServiceProvider();
           MD5 md5 = new MD5CryptoServiceProvider();
           byte[] kq = md.ComputeHash(bytes);
           byte[] kq2 = md5.ComputeHash(kq);
           return Convert.ToBase64String(kq2);
Posted 18-Nov-12 23:26pm
Updated 18-Nov-12 23:36pm

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

  Print Answers RSS
Top Experts
Last 24hrsThis month

Advertise | Privacy | Mobile
Web01 | 2.8.160721.1 | Last Updated 19 Nov 2012
Copyright © CodeProject, 1999-2016
All Rights Reserved. Terms of Service
Layout: fixed | fluid

CodeProject, 503-250 Ferrand Drive Toronto Ontario, M3C 3G8 Canada +1 416-849-8900 x 100