首先我们来了解一下什么是Active Directory。不用我描述,看以下网址,或在.net自带帮助文档里根据Active Directory关键字一搜,就什么都明白了。 
 http:///pub/article/c322_a28703_p2.html 
接下来,我们来看看权限。你可以通过“网上邻居--整个网络--Directory--demain(你的域名)”你就可以看到所有关于域下的信息,粗一看就知道是怎么回事了。 
 需要告诉大家的:所有组织单位下的用户都在Users(容器)--Demain Users(组)中 
 用代码进行访问时,如果你是域管理员用户,则可以做任何操作,否则,只能查询用户属性。 
private void SearchUser() 
 { 
 string domainName = "Domain"; 
 string groupName = "Domain Users"; 
 string dirmemName=""; 
 //在Domain Users域用户里取得每个用户名 
 System.DirectoryServices.DirectoryEntry group = new System.DirectoryServices.DirectoryEntry("WinNT://" + domainName + "/" + groupName + ",group"); 
 foreach(Object member in (IEnumerable)group.Invoke("Members")) 
 { 
 //根据很个用户生成如:"LDAP://OU=套装软体课,OU=系统开发部,OU=资讯服务处,OU=营运支援中心,OU=XX公司,DC=Domain,DC=com,DC=cn" 
 System.DirectoryServices.DirectoryEntry dirmem = new System.DirectoryServices.DirectoryEntry(member); 
 dirmemName=; 
 string DomainName="Domain"; 
 string FilterStr = "(sAMAccountname="+dirmemName+")"; 
 System.DirectoryServices.DirectorySearcher FindMe = new System.DirectoryServices.DirectorySearcher(DomainName); 
 FindMe.Filter = FilterStr; 
 System.DirectoryServices.SearchResult FindRes = FindMe.FindOne(); 
 System.DirectoryServices.DirectoryEntry MyUser = FindRes.GetDirectoryEntry(); 
 string OUPath=MyUser.Parent.Path; 
 //找到该用户所在的LDAP:后,由域管理员登录,并取得该用户的所在属性。 
 string strFieldsValue="",strFields=""; 
 System.DirectoryServices.DirectoryEntry myds=new System.DirectoryServices.DirectoryEntry(OUPath,"域管理员名","域管理员密码"); 
 foreach(System.DirectoryServices.DirectoryEntry tempEntry in myds.Children) 
 { 
 if(tempEntry.SchemaClassName.ToString() == "user" && tempEntry.Properties["sAMAccountName"].Value.ToString().ToLower()==dirmemName) 
 { 
 foreach (string propertyName in tempEntry.Properties.PropertyNames ) 
 { 
 string oneNode = propertyName + ": " + 
 entry.Properties[propertyName][0].ToString(); 
 this.Textbox1.Text=oneNode; 
 } 
 }--------------------------------------------------------------------------------
public void AddUser(string strPath,string Username,string ChineseName)//strPath 增加用户至哪个组织单位如"LDAP://OU=XX公司,DC=Domain,DC=com"帐号、中文名{ 
 try 
 { 
 string RootDSE; 
 //System.DirectoryServices.DirectorySearcher DSESearcher= new System.DirectoryServices.DirectorySearcher(); 
 //RootDSE=DSESearcher.SearchRoot.Path; 
 //RootDSE="LDAP://DC=Domain,DC=com"; 
 //RootDSE=RootDSE.Insert(7,"CN=Users,"); 
 System.DirectoryServices.DirectoryEntry myDE = new System.DirectoryServices.DirectoryEntry(strPath); 
 System.DirectoryServices.DirectoryEntries myEntries = myDE.Children; 
 // Create a new entry 'Sample' in the container. 
 string strname="CN="+ChineseName; 
 System.DirectoryServices.DirectoryEntry myDirectoryEntry = myEntries.Add(strname, "user"); //MessageBox.Show(myDirectoryEntry.SchemaClassName.ToString()); 
 myDirectoryEntry.Properties["userPrincipalName"].Value=Username; 
 myDirectoryEntry.Properties["name"].Value=ChineseName; 
 myDirectoryEntry.Properties["samAccountName"].Value=Username; 
 myDirectoryEntry.Properties["userAccountControl"].Value =66048; //590336; 
 myDirectoryEntry.CommitChanges(); 
 }--------------------------------------------------------------------------------
private void addOU(string strPath,string OUName)//增加组织到strPath组织单位下,组织名称 
 { 
 try 
 { 
 //String RootDSE; 
 //System.DirectoryServices.DirectorySearcher DSESearcher= new System.DirectoryServices.DirectorySearcher(); 
 //RootDSE=DSESearcher.SearchRoot.Path; 
 //RootDSE="LDAP://OU=百意时尚广场,DC=Domain,DC=com"; System.DirectoryServices.DirectoryEntry myDE = new System.DirectoryServices.DirectoryEntry(strPath); 
 System.DirectoryServices.DirectoryEntries myEntries = myDE.Children; 
 string name="OU="+OUName; 
 System.DirectoryServices.DirectoryEntry myDirectoryEntry = myEntries.Add(name,"organizationalUnit"); myDirectoryEntry.Properties["name"].Value=OUName; 
 myDirectoryEntry.Properties["instanceType"].Value=4; 
 myDirectoryEntry.Properties["distinguishedName"].Value="OU="+OUName+",DC=Domain,DC=COM)"; 
 myDirectoryEntry.Properties["objectCategory"].Value="CN=Organizational-Unit,CN=Schema,CN=Configuration,DC=sedep,DC=COM"; 
 myDirectoryEntry.Properties["ou"].Value=OUName; 
 myDirectoryEntry.Properties["postalCode"].Value="777"; myDirectoryEntry.CommitChanges(); 
 //UserMoveto("LDAP://OU="+OUName+",DC=sedep,DC=com",strPath); 
 } 
 catch(Exception RaiseErr) 
 { 
 MessageBox.Show (RaiseErr.Message); 
 } 
 }--------------------------------------------------------------------------------
private void ModifyUser() 
 { 
 try 
 { 
 string DomainName="Domain"; 
 string FilterStr = "(sAMAccountname=karlluo)"; 
 System.DirectoryServices.DirectorySearcher FindMe = new System.DirectoryServices.DirectorySearcher(DomainName); 
 FindMe.Filter = FilterStr; 
 System.DirectoryServices.SearchResult FindRes = FindMe.FindOne(); 
 string tt=FindRes.Path; 
 System.DirectoryServices.DirectoryEntry MyUser = FindRes.GetDirectoryEntry(); 
 string OUPath=MyUser.Parent.Path; DirectoryEntry myds=new DirectoryEntry(OUPath,"域管理员名","域管理员密码"); 
foreach(System.DirectoryServices.DirectoryEntry tempEntry in myds.Children) 
 { 
 if(tempEntry.SchemaClassName.ToString() == "user") 
 { 
 if(tempEntry.Properties["sAMAccountName"].Value.ToString().ToLower()=="karlluo") 
 { 
 tempEntry.UsePropertyCache=true; 
 tempEntry.Properties["st"].Value="yyyyyyyyyyyyyyyy"; 
 //newEntry.Properties["userPrincipalName"].Value="userID"; 
 tempEntry.CommitChanges(); 
 } 
 } 
 } 
 } 
 catch(Exception RaiseErr) 
 { 
 MessageBox.Show (RaiseErr.Message); 
 } }
  
 
 
                     
            
        













 
                    

 
                 
                    