Active Directory（活動目錄）是Windows Server 2003域環境中提供目錄服務的組件。目錄服務在微軟平臺上從Windows Server 2000開始引入，所以我們可以理解為活動目錄是目錄服務在微軟平臺的一種實現方式。當然目錄服務在非微軟平臺上都有相應的實現。關于AD的更詳細說明請 上百度度娘吧，哈哈~

要在C#.net平臺下實現AD相關操作，需要添加引用using System.DirectoryServices;

??????? private void Login_Click(object sender, EventArgs e)??? //登入按鈕 運費
??????? {
??????????? try
??????????? {
??????????????? string FilterStr;//要查找的用戶名??????????????
??????????????? DirectoryEntry entry = this.MyGetDirectoryEntry();
??????????????? DirectorySearcher Seacher = new DirectorySearcher(entry);
??????????????? FilterStr = "(&(objectClass=user) (cn=" + m_username + "))";
??????????????? Seacher.Filter = FilterStr;
??????????????? SearchResult Result = Seacher.FindOne();
??????????????? if (Result == null)
??????????????? {
??????????????????? MessageBox.Show("用戶名或密碼有錯！");
??????????????? }
??????????????? else
??????????????? {
??????????????????? MessageBox.Show("登入成功！");
??????????????????? entry.AuthenticationType = AuthenticationTypes.Secure;
??????????????????? //this.Hide();
??????????????????? //Form2 frm = new Form2();
??????????????????? //frm.Show();
??????????????? }
??????????? }
??????????? catch (Exception ex)
??????????? {
??????????????? string Str = ex.Message;
??????????????? MessageBox.Show("用戶名或密碼有錯！");
??????????? }
??????? }

??? private void Check_Click(object sender, EventArgs e)?? //測試按鈕
??? {
??????????? m_username = UserName.Text;
??????????? if (UserExists(m_username))
??????????? { 女裝品牌排行榜
??????????????? MessageBox.Show("連接成功！");
?????????????? //? CreateNewUser("", "ezhrt1");
??????????? }
??????????? else
??????????? {
??????????????? MessageBox.Show("連接失敗！");
??????????? }
??????? }

??????? public bool UserExists(string UserName)?????? // 判斷用戶是否存在
??????? {
??????????? try
??????????? {
??????????????? DirectoryEntry entry = this.MyGetDirectoryEntry();
??????????????? DirectorySearcher Search = new DirectorySearcher();
??????????????? Search.SearchRoot = entry;
??????????????? Search.Filter = "(&(objectClass=user) (cn=" + UserName + "))";
??????????????? SearchResultCollection results = Search.FindAll();
??????????????? if (results.Count == 0)
??????????????? {
??????????????????? return false;
??????????????? }
??????????????? else
??????????????? {
??????????????????? return true;
??????????????? }
??????????? }
??????????? catch (Exception ex)
??????????? {
??????????????? string Str = ex.Message;
??????????????? return false;
??????????? }
??????? }

??????? private void button1_Click(object sender, EventArgs e)//測試
??????? {
??????????? m_cn = Text_CN.Text;
??????????? if (this.UserExists(m_cn))
??????????? {
??????????????? LabelCheck.Text = "用戶名已存在";
??????????? }
??????????? else
??????????? {
??????????????? LabelCheck.Text = "用戶名可用";
??????????? }
??????? }

??????? private void Login_Click(object sender, EventArgs e) //確定
??????? {
??????????? m_cn = Text_CN.Text;
??????????? m_bs = Text_Bname.Text;
??????????? m_description = Text_Description.Text;
??????????? m_givename = Text_GiveName.Text;
??????????? m_mail = Text_Mail.Text;
??????????? m_pass1 = Text_Pass1.Text;
??????????? m_pass2 = Text_Pass2.Text;
??????????? m_sn = Text_SN.Text;
??????????? m_telephone = Text_Telephone.Text;
??????????? m_www = Text_WWW.Text;
??????????? if (UserExists(m_cn))
??????????? {
??????????????? MessageBox.Show("用戶名已存在！");
??????????? }
??????????? else if (m_pass1.Equals("") || m_pass2.Equals("") || !m_pass1.Equals(m_pass2))
??????????? {
??????????????? MessageBox.Show("密碼有誤！");
??????????? }
??????????? else if (IsEmail(m_mail))
??????????? {
??????????????? MessageBox.Show("郵箱地址格式不正確！");
??????????? }
??????????? else
??????????? {
??????????????? try
??????????????? {
??????????????????? DirectoryEntry myEntry = new DirectoryEntry(m_bs, m_uname, m_pword, AuthenticationTypes.Secure);
???????????????????????
??????????????????? //"LDAP://192.168.0.169/OU=eZHR,DC=Lanall,DC=com", "域管理用戶", "域管理用戶密碼", AuthenticationTypes.Secure);
??????????????????? DirectoryEntries myEntries = myEntry .Children;
??????????????????? string Strname = "CN=" + m_cn;
??????????????????? DirectoryEntry myDirectoryEntry = myEntries.Add(Strname, "user");
??????????????????? myDirectoryEntry.Properties["userPrincipalName"].Value = m_sn + m_givename;
??????????????????? myDirectoryEntry.Properties["name"].Value = m_givename;
??????????????????? myDirectoryEntry.Properties["samAccountName"].Value = m_cn;
??????????????????? myDirectoryEntry.Properties["pwdLastSet"].Value = -1;
??????????????????? myDirectoryEntry.Properties["userAccountControl"].Value = 553;//553;// 66048; //590336;
??????????????????? myDirectoryEntry.Properties["sn"].Value = m_sn;
??????????????????? myDirectoryEntry.Properties["givenName"].Value = m_givename;
??????????????????? myDirectoryEntry.Properties["telephoneNumber"].Value = m_telephone;
??????????????????? myDirectoryEntry.Properties["mail"].Value = m_mail;
??????????????????? myDirectoryEntry.Properties["wWWHomePage"].Value = m_www;
??????????????????? myDirectoryEntry.Properties["description"].Value = m_description;
???????????????????
??????????????????? myDirectoryEntry.CommitChanges();
??????????????????? myDirectoryEntry.Invoke("SetPassword", new object[] {m_pass1});
??????????????????? MessageBox.Show("添加成功！");
??????????????? }
??????????????? catch (Exception ex)
??????????????? {
??????????????????? string str = ex.Message;
??????????????? }
??????????? }
??????????
??????? }

??????? private void Del_Click(object sender, EventArgs e)//刪除用戶
??????? {?
??????????? m_cn = Text_CN.Text;
??????????? try
??????????? {
??????????????? if (UserExists(m_cn))
??????????????? {??????????????
??????????????????? DirectoryEntry entry = new DirectoryEntry(m_sname + m_bname, m_uname, m_pword);
??????????????????? DirectorySearcher Search = new DirectorySearcher();
??????????????????? Search.SearchRoot = entry;
??????????????????? Search.Filter = "(&(objectClass=user) (cn=" + m_cn + "))";
??????????????????? SearchResult Result = Search.FindOne();
??????????????????? DirectoryEntry child = Result.GetDirectoryEntry();
??????????????????? child.DeleteTree();
??????????????????? MessageBox.Show("刪除成功！");
??????????????? }
??????????????? else
??????????????? {
??????????????????? MessageBox.Show("不存在用戶：" + m_cn);
??????????????? }
??????????? }
??????????? catch (Exception ex)
??????????? {
??????????????? string Str = ex.Message;
??????????? }
??????? }

使用C#對Active Directory（活動目錄）的操作