Get all users from active directory using c#

I needed to get all members  from active directory using c#.
Now the solution I have found is as follows

using (var context = new PrincipalContext(ContextType.Domain, "yourdomain.com"))
{
    using (var searcher = new PrincipalSearcher(new UserPrincipal(context)))
    {
        foreach (var result in searcher.FindAll())
        {
            DirectoryEntry de = result.GetUnderlyingObject() as DirectoryEntry;
            Console.WriteLine("First Name: " + de.Properties["givenName"].Value);
            Console.WriteLine("Last Name : " + de.Properties["sn"].Value);
            Console.WriteLine("SAM account name   : " + de.Properties["samAccountName"].Value);
            Console.WriteLine("User principal name: " + de.Properties["userPrincipalName"].Value);
            Console.WriteLine();
        }
    }
}
Console.ReadLine();

the solution I have provided is from http://stackoverflow.com/questions/5162897/how-can-i-get-a-list-of-users-from-active-directory


Now the directory entry contains properties defined as string or object and you need to make sure that the data are accessed correctly.

	using (var context = new PrincipalContext(ContextType.Domain, "spacenation"))
	{
	using (var searcher = new PrincipalSearcher(new UserPrincipal(context)))
	{
	foreach (var result in searcher.FindAll().Where(x => x.SamAccountName.Contains("UserName")))
	{
	DirectoryEntry de = result.GetUnderlyingObject() as DirectoryEntry;
	Console.WriteLine("First Name: " + de.Properties["givenName"].Value);
	Console.WriteLine("Last Name : " + de.Properties["sn"].Value);
	Console.WriteLine("User principal name: " + de.Properties["userPrincipalName"].Value);
	Console.WriteLine("=======================================");
	var auth = result as AuthenticablePrincipal;
	if (auth != null)
	{
	Console.WriteLine("Name: " + auth.Name);
	Console.WriteLine("Last Logon Time: " + auth.LastLogon);
	Console.WriteLine();
	}
	Console.WriteLine("lastLogon: " + de.Properties["lastLogon"]);
	foreach (string name in de.Properties.PropertyNames)
	{
	Console.WriteLine("{0}: {1}", name, de.Properties[name].Value);
	}
	Console.WriteLine();
	}
	}
	}

view raw example.cs hosted with ❤ by GitHub

	var ad = new AdUserInfo();
	using (var context = new PrincipalContext(ContextType.Domain, domain))
	{
	using (UserPrincipal user = UserPrincipal.FindByIdentity(context, IdentityType.SamAccountName, userName))
	{
	ad.FirstName = user.GivenName;
	ad.LastName = user.Surname;
	ad.Email = user.EmailAddress;
	ad.SamAccountName = user.SamAccountName;
	ad.LastLogonDate = user.LastLogon;
	DirectoryEntry de = user.GetUnderlyingObject() as DirectoryEntry;
	object value = de.Properties["title"].Value;
	ad.Title = value != null ? value.ToString() : string.Empty;
	if (includeExtendedData)
	{
	ad.Properties = new List<KeyValuePair<string, object>>();
	foreach (string propertyName in de.Properties.PropertyNames)
	{
	var keyValuePair = new KeyValuePair<string, object>(propertyName, de.Properties[propertyName].Value);
	ad.Properties.Add(keyValuePair);
	}
	}
	}
	}
	return ad;

view raw get_user_details.cs hosted with ❤ by GitHub

	First Name: Dummy
	Last Name : User
	User principal name: UserName@SpaceNation.com
	=======================================
	Name: Dummy User
	Last Logon Time: 03/03/2016 09:23:56
	lastLogon: System.DirectoryServices.PropertyValueCollection
	objectClass: System.Object[]
	cn: Dummy User
	sn: User
	givenName: Dummy
	distinguishedName: CN=Dummy User,OU=3rd party services,OU=Services,DC=
	SpaceNation,DC=dc
	instanceType: 4
	whenCreated: 29/02/2016 00:03:22
	whenChanged: 09/03/2016 22:52:05
	displayName: Dummy User
	uSNCreated: System.__ComObject
	uSNChanged: System.__ComObject
	nTSecurityDescriptor: System.__ComObject
	name: Dummy User
	objectGUID: System.Byte[]
	userAccountControl: 66048
	badPwdCount: 0
	codePage: 0
	countryCode: 0
	badPasswordTime: System.__ComObject
	lastLogoff: System.__ComObject
	lastLogon: System.__ComObject
	pwdLastSet: System.__ComObject
	primaryGroupID: 513
	userParameters: P☺CtxCfgPresent????☺CtxCfgFlags1????☺CtxShadow????*☻☺CtxMinEncryptionLevel?
	objectSid: System.Byte[]
	accountExpires: System.__ComObject
	logonCount: 6
	sAMAccountName: UserName
	sAMAccountType: 805306368
	userPrincipalName: UserName@SpaceNation.dc
	lockoutTime: System.__ComObject
	objectCategory: CN=Person,CN=Schema,CN=Configuration,DC=SpaceNation,DC=dc
	dSCorePropagationData: System.Object[]
	lastLogonTimestamp: System.__ComObject

view raw result.txt hosted with ❤ by GitHub