Enumerating the objects in an OU

Hello,

I want to get an enumerating of the objects in an OU using C#.
Especially the user objects of an OU.

I've got no Problem to enumerate user of an group using (COM) Interop.ActiveDs (Active DS Type Library).
For instance :

[Code]      
      StringCollection scGroupMembers = new StringCollection();
      string strLDAPGroup = "LDAP://server1/CN=Group1,CN=Users,DC=domaindc1,DC=domaindc2,DC=domaindc3";
      DirectoryEntry deGroup = new DirectoryEntry(strLDAPGroup);

      try
      {

            IADsMembers adsiMembers = (IADsMembers)deGroup.Invoke("Members");
            adsiMembers.Filter = new object[] {"user"};
            foreach (IADsUser adsiUser in adsiMembers)
            {
                        scGroupMembers.Add(adsiUser.ADsPath);
            }

      }

      finally
      {
            deGroup.Dispose();
      }

      return(scGroupMembers);
[/Code]      

But how is it possible to get all childs of an OU?
Do I have to use IADsCollection?

Maybe there is another way than using Interop.ActiveDs?

I would be very glad for any advice.
Thank you.

Best regards.
develc
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develcAsked:
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ihenryConnect With a Mentor Commented:

In .NET Framework the best practice is to use DirectoryServices API. Given an OU, you can enumerate child objects like users, groups, or any object type. Look at these articles

Enumerating Child Objects
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/sds/sds/enumerating_child_objects.asp

Enumerating Users and Groups
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/sds/sds/enumerating_child_objects.asp
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