//文件名：ChangeUserPasswordForm.cs
using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Text;
using?System.Windows.Forms;

using?System.Security.Cryptography;
using?System.IO;
using?System.Security.Principal;
using?System.Data.OleDb;
namespace?MySchool
{
????public?partial?class?ChangeUserPasswordForm?:?Form
????{
????????public?ChangeUserPasswordForm（）
????????{
????????????InitializeComponent（）;
????????}
????????private?void?返回系統Button_Click（object?sender?EventArgs?e）
????????{
????????????this.Close（）;
????????}
????????private?void?修改密碼Button_Click（object?sender?EventArgs?e）
????????{
????????????if?（!（this.新密碼TextBox.Text?==?this.再輸一次新密碼TextBox.Text）?||?（this.新密碼TextBox.Text.Length?==?0））
????????????{
????????????????MessageBox.Show（“兩次密碼的輸入不一致！“?“信息提示“?MessageBoxButtons.OK?MessageBoxIcon.Information）;
????????????????return;
????????????}
????????????string?MyHashName?=?“SHA1“;
????????????//創建一個哈希算法
????????????HashAlgorithm?MyHashAlgorithm?=?HashAlgorithm.Create（MyHashName）;
????????????string?MyNewPassword?=?this.新密碼TextBox.Text;
????????????//轉換密碼字符串為一個字節數組
????????????byte[]?MyNewPasswordData?=?Encoding.Default.GetBytes（MyNewPassword）;
????????????//生成密碼字符串的哈希碼
????????????byte[]?MyNewHash?=?MyHashAlgorithm.ComputeHash（MyNewPasswordData）;
????????????//顯示密碼對應的哈希碼
????????????string?MyNewPW?=?BitConverter.ToString（MyNewHash）;
????????????string?MyOldPassword?=?this.舊密碼TextBox.Text;
????????????byte[]?MyOldPasswordData?=?Encoding.Default.GetBytes（MyOldPassword）;
????????????byte[]?MyOldHash?=?MyHashAlgorithm.ComputeHash（MyOldPasswordData）;
????????????string?MyOldPW?=?BitConverter.ToString（MyOldHash）;
????????????String?MyConnectionString?=?global::MySchool.Properties.Settings.Default.DBSchoolConnectionString;
????????????string?MySQL?=?“Update??操作用戶?Set?用戶密碼=‘“?+?MyNewPW?+?“‘?Where?用戶名稱=‘“?+?this.用戶名稱TextBox.Text?+?“‘?AND?用戶密碼=‘“?+?MyOldPW?+?“‘“;
????????????OleDbConnection?MyConnection?=?new?OleDbConnection（MyConnectionString）;
????????????OleDbCommand?MyCommand?=?new?OleDbCommand（MySQL?MyConnection）;
????????????MyCommand.Connection.Open（）;
????????????int?MyCount?=?MyCommand.ExecuteNonQuery（）;
????????????if?（MyCount?==?1）
????????????{
????????????????MessageBox.Show（“在數據庫中修改用戶密碼操作成功！“?“信息提示“?MessageBoxButtons.OK?MessageBoxIcon.Information）;
????????????}
????????????else
????????????{
????????????????MessageBox.Show（“在數據庫中修改用戶密碼操作失??！“?“信息提示“?MessageBoxButtons.OK?MessageBoxIcon.Information）;
????????????}
????????????if?（MyConnection.State?==?ConnectionState.Open）
????????????{
????????????????MyConnection.Close（）;
????????????}
????????}
????}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????914??2008-08-17?19:09??第2章?學校教務管理系統\MySchool\MySchool.sln

????..A..H.?????45568??2008-08-17?19:15??第2章?學校教務管理系統\MySchool\MySchool.suo

?????文件???????8757??2007-12-04?08:53??第2章?學校教務管理系統\MySchool\MySchool\ChangeUserPasswordForm.Designer.cs

?????文件???????3062??2007-12-05?16:10??第2章?學校教務管理系統\MySchool\MySchool\ChangeUserPasswordForm.cs

?????文件???????7080??2007-12-04?08:53??第2章?學校教務管理系統\MySchool\MySchool\ChangeUserPasswordForm.resx

?????文件??????22306??2007-12-06?08:00??第2章?學校教務管理系統\MySchool\MySchool\ChargeForm.Designer.cs

?????文件???????8705??2007-12-06?08:00??第2章?學校教務管理系統\MySchool\MySchool\ChargeForm.cs

?????文件??????21736??2007-12-06?08:00??第2章?學校教務管理系統\MySchool\MySchool\ChargeForm.resx

?????文件??????32384??2007-12-04?16:16??第2章?學校教務管理系統\MySchool\MySchool\CheckForm.Designer.cs

?????文件???????5417??2007-12-05?16:16??第2章?學校教務管理系統\MySchool\MySchool\CheckForm.cs

?????文件??????12006??2007-12-04?16:16??第2章?學校教務管理系統\MySchool\MySchool\CheckForm.resx

?????文件??????33672??2007-12-06?07:40??第2章?學校教務管理系統\MySchool\MySchool\ClassForm.Designer.cs

?????文件???????1560??2007-12-06?07:40??第2章?學校教務管理系統\MySchool\MySchool\ClassForm.cs

?????文件??????15090??2007-12-06?07:40??第2章?學校教務管理系統\MySchool\MySchool\ClassForm.resx

?????文件??????29374??2007-12-04?09:32??第2章?學校教務管理系統\MySchool\MySchool\ClassroomForm.Designer.cs

?????文件???????1054??2007-12-05?16:17??第2章?學校教務管理系統\MySchool\MySchool\ClassroomForm.cs

?????文件??????14274??2007-12-04?09:32??第2章?學校教務管理系統\MySchool\MySchool\ClassroomForm.resx

?????文件??????46429??2007-12-04?11:03??第2章?學校教務管理系統\MySchool\MySchool\CurseForm.Designer.cs

?????文件???????2201??2007-12-05?16:17??第2章?學校教務管理系統\MySchool\MySchool\CurseForm.cs

?????文件??????17730??2007-12-04?11:03??第2章?學校教務管理系統\MySchool\MySchool\CurseForm.resx

?????文件??????38155??2007-12-04?09:38??第2章?學校教務管理系統\MySchool\MySchool\DormForm.Designer.cs

?????文件???????1036??2007-12-05?16:18??第2章?學校教務管理系統\MySchool\MySchool\DormForm.cs

?????文件??????15051??2007-12-04?09:38??第2章?學校教務管理系統\MySchool\MySchool\DormForm.resx

?????文件??????32968??2007-12-06?08:25??第2章?學校教務管理系統\MySchool\MySchool\LeaveForm.Designer.cs

?????文件???????3283??2007-12-06?08:25??第2章?學校教務管理系統\MySchool\MySchool\LeaveForm.cs

?????文件??????14857??2007-12-06?08:25??第2章?學校教務管理系統\MySchool\MySchool\LeaveForm.resx

?????文件???????6293??2007-12-04?08:51??第2章?學校教務管理系統\MySchool\MySchool\LoginForm.Designer.cs

?????文件???????3387??2007-12-05?16:10??第2章?學校教務管理系統\MySchool\MySchool\LoginForm.cs

?????文件???????6990??2007-12-04?08:51??第2章?學校教務管理系統\MySchool\MySchool\LoginForm.resx

?????文件??????63633??2007-12-04?09:03??第2章?學校教務管理系統\MySchool\MySchool\MainForm.Designer.cs

............此處省略269個文件信息