CSharp Active Directory den LDAP sorgusu atma.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.DirectoryServices.AccountManagement; // referansa ekle


framevowrk 4.0 çalışıyor




namespace LDAP_Sorgu
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
           label1.Text = LDAPAuthenticateUser("kurumum.com.tr", "Username", "****").ToString();
        }

        public bool LDAPAuthenticateUser(string domain, string username, string password)
        {
            bool loginBasarili = false;
            using (PrincipalContext pc = new PrincipalContext(ContextType.Domain, domain))
            {
                loginBasarili = pc.ValidateCredentials(username, password);
            }
            return loginBasarili;
        }
    }
}