c#针对LDAP上的Active Directory

using System;
using System.DirectoryServices;

public static void Main()
{
    string domain = "example.com";
    string username = "admin";
    string password = "password";

    string ldapPath = string.Format("LDAP://{0}", domain);
    DirectoryEntry entry = new DirectoryEntry(ldapPath, username, password);

    DirectorySearcher searcher = new DirectorySearcher(entry);
    searcher.Filter = "(&(objectClass=user)(sAMAccountName=jdoe))";
    searcher.PropertiesToLoad.Add("displayName");
    searcher.PropertiesToLoad.Add("mail");

    SearchResult result = searcher.FindOne();
    if (result != null)
    {
        Console.WriteLine("Display Name: {0}", result.Properties["displayName"][0]);
        Console.WriteLine("Email: {0}", result.Properties["mail"][0]);
    }
    else
    {
        Console.WriteLine("User not found.");
    }
}