private const string domainName = "本机IP地址或域名";
private const string adAdmin = "管理员帐号";
private const string password = "管理员密码";
private const string ouName = "子节点名";//只是一个子节点名
private DataTable GetADUsers()
{
DataTable dt = new DataTable();
dt.Columns.Add("sAMAccountName");//帐号
dt.Columns.Add("displayName");//显示名称
dt.Columns.Add("description");//描述
dt.Columns.Add("telephoneNumber");//电话号码
dt.Columns.Add("mail"); //邮箱地址
dt.Columns.Add("wWWHomePage"); //网页
dt.Columns.Add("c"); //国家
dt.Columns.Add("st"); //省/自治区
dt.Columns.Add("l"); //市/县
dt.Columns.Add("streetAddress"); //街道
dt.Columns.Add("company");//公司
dt.Columns.Add("department");//部门
dt.Columns.Add("title");//职务
dt.Columns.Add("manager");//我的经理
DirectoryEntry adRoot = new DirectoryEntry("LDAP://" + domainName, adAdmin, password, AuthenticationTypes.Secure);
DirectoryEntry ou = adRoot.Children.Find("OU=" + ouName);
DirectorySearcher mySearcher = new DirectorySearcher(ou);//想搜索出所有，此处可省参数
mySearcher.Filter = ("(objectClass=user)"); //user表示用户，group表示组
foreach (System.DirectoryServices.SearchResult resEnt in mySearcher.FindAll())
{
//if (user.Properties.Contains("mail"))
//{
// dr["mail"] = user.Properties["mail"][0].ToString();
//}
//if (user.Parent.Name != string.Empty && user.Parent.Name.IndexOf('=') > -1)
//{
// //获取用户所在的组织单位
// dr["OU"] = user.Parent.Name.Split('=')[1];
//}
DataRow dr = dt.NewRow();
DirectoryEntry user = resEnt.GetDirectoryEntry();
if (user.Properties.Contains("sAMAccountName"))
{
dr["sAMAccountName"] = user.Properties["sAMAccountName"][0].ToString();
}
if (user.Properties.Contains("displayName"))
{
dr["displayName"] = user.Properties["displayName"][0].ToString();
}
if (user.Properties.Contains("description"))
{
dr["description"] = user.Properties["description"][0].ToString();
}
if (user.Properties.Contains("telephoneNumber"))
{
dr["telephoneNumber"] = user.Properties["telephoneNumber"][0].ToString();
}
if (user.Properties.Contains("mail"))
{
dr["mail"] = user.Properties["mail"][0].ToString();
}
if (user.Properties.Contains("wWWHomePage"))
{
dr["wWWHomePage"] = user.Properties["wWWHomePage"][0].ToString();
}
if (user.Properties.Contains("c"))
{
dr["c"] = user.Properties["c"][0].ToString();
}
if (user.Properties.Contains("st"))
{
dr["st"] = user.Properties["st"][0].ToString();
}
if (user.Properties.Contains("l"))
{
dr["l"] = user.Properties["l"][0].ToString();
}
if (user.Properties.Contains("streetAddress"))
{
dr["streetAddress"] = user.Properties["streetAddress"][0].ToString();
}
if (user.Properties.Contains("company"))
{
dr["company"] = user.Properties["company"][0].ToString();
}
if (user.Properties.Contains("department"))
{
dr["department"] = user.Properties["department"][0].ToString();
}
if (user.Properties.Contains("title"))
{
dr["title"] = user.Properties["title"][0].ToString();
}
if (user.Properties.Contains("manager"))
{
dr["manager"] = user.Properties["manager"][0].ToString().Split(',')[0].Remove(0, 3);
}
dt.Rows.Add(dr);
}
return dt;
}