导入命名空间 using System.DirectoryServices;

dn = "DC=l,DC=com";






CN 用户名
OU 组织
DC 域控制器
userPrincipalName 登录名


string srvip = textBox2.Text;// "192.168.0.21";
string dn = textBox3.Text;// "DC=DEMO,DC=com";
string user = textBox4.Text;// @"administrator";
string pwd = textBox5.Text;// "123456";
DirectoryEntry de;
de = new DirectoryEntry("LDAP://" + srvip + "/" + dn, user, pwd);
DirectorySearcher sr = new DirectorySearcher(de, "(CN="+textBox1.Text+")"); //要括起来
ResultPropertyCollection pp=sr.FindOne().Properties;
foreach (string ppp in pp.PropertyNames)
{
listBox1.Items.Add(ppp);
for (int i = 0; i < pp[ppp].Count; i++)
{
listBox1.Items.Add("---------------->" + pp[ppp][i].ToString());
}
}
}