System.DirectoryServices - Getting Group Users

[Robert Chartier]

AD is correctly loaded and works (for some things -see my previous emails) ,
but im trying to get a list of the Children (assuming users, etc..) of a
group:

string groupname = "Administrators";

System.Collections.ArrayList users = new System.Collections.ArrayList();
foreach(System.DirectoryServices.DirectoryEntry dir in
AD.Children.Find(groupname, "group").Children) {
if(dir.SchemaClassName=="User") users.Add(dir);
}

Assuming this is the correct method for listing users that belong to a
group, it doenst enter the foreach at all.

security is not an issue because im impersontating an administrator

pardon my rudeness/frusteration, but...

Can some explain to me why me, and a few of my collegues here are having so
many problems with this namespace? Also why im not getting any response
from anyone on this? (5+ hours is long enough to wait, inst it?) Was this
namespace added/hacked in (via interop) just before launch and not tested
approriately? Will Microsoft be fixing this issue soon? What do they
recommend for doing this now? Should I stop wasting my time with this
version of Interop (System.DirectoryServices) and do it all my self? What
are my alternatives?

Is the code posted in this email, and the two others correct? If not, can
you please provide sample code for each request, which actually works.

Any response indicating any sort of action being taken will be appreciated.
My publisher is demanding that I have this article done for today so I will
be forced to send this incomplete article, indicating these issues and the
problems in the framework itself.

I do not mind sending my code to you to test with. I have singed a NDA with
Microsoft, so if this list is inappropriate please contact me directly at
r...@santra.com

Thanks for your immediate attention.

[Willy Denoyette [MVP]]

What does AD represent in this snippet?

Please post a complete repro if possible.

Willy.

"Robert Chartier" <rob-n...@aspfree.com> wrote in message news:OrRy$#FKCHA.2688@tkmsftngp11...

[Robert Chartier]

WinNt provider again.

AD would represent the computer

WinNT://MachineName,computer

i can list groups fine, but cannot get users based on a group, or groups
based on a user.

ive also tried

foreach(object o in sr.Properties["member"]){}

with no luck

thanks for any input

"Willy Denoyette [MVP]" <willy.d...@pandora.be> wrote in message
news:#CahmNRLCHA.1332@tkmsftngp04...

[Willy Denoyette [MVP]]

"member" is not a property of the group entry.
To list the members in a group entry, you need to call the native Activeds COM IADsGroup interface method "Members".
This requires a reference to activeds.tlb, or run tlbimp.exe against activeds.tlb .
Here is a sample:

using System;
using System.DirectoryServices;
using System.Runtime.InteropServices;
using System.Reflection;
using activeds; // Import activeds.tlb (%windir%\system32\activeds.tlb)
class Test {
static string bindUser = "administrator"; // binding user with sufficient privileges
static string bindPwd = "hispwd"; // password of the binding user
static void ListUserAndGroups(string machineName)
{
DirectoryEntry _compContainer = new DirectoryEntry("WinNT://" + machineName + ",computer", bindUser, bindPwd);
try
{
foreach(DirectoryEntry de in _compContainer.Children)
{
switch (de.SchemaClassName.ToLower())
{
case "group":
Console.WriteLine("---------- group - {0} ---------", de.Name);
ListMembersInGroup(de.Path);
break;
case "user":
Console.WriteLine("---------- user - {0} ---------", de.Name);
ListUserProp(de.Path);
break;
default:
break;
}
}
}
finally {
_compContainer.Dispose();
}
}

private static void ListMembersInGroup(string dirPath) {
IADsMembers MembersCollection = null;
DirectoryEntry _groupEntry = new DirectoryEntry(dirPath ,bindUser, bindPwd);
try {
// call native method "members" on the IADsGroup COM interface exposed by activeds.dll
IADsGroup gr = _groupEntry.NativeObject as IADsGroup;
MembersCollection = gr.Members();
// or call Invoke on the DirectoryEntry object passing the Method to call as arg.
// cast the retruned object to IADsMembers
// MembersCollection = _groupEntry.Invoke("Members") as IADsMembers;
object[] filter = {"user"};
MembersCollection.Filter = filter;
// enumerate members of collection object that supports the IADsMembers interface
// ADSI provider doesn't support count property!!
try {
foreach (IADsUser member in MembersCollection) {
Console.WriteLine("[{0}]", member.Name);
ListUserProp(member.ADsPath);
}
}
catch (COMException e) {
Console.WriteLine("Error: {0}",e.Message);
}
}
catch (COMException e) {
Console.WriteLine(e.Message);
}
finally {
_groupEntry.Dispose();
}
}
private static void ListUserProp(string dirPath) {
DirectoryEntry userEntry = null;
try {
userEntry = new DirectoryEntry(dirPath,bindUser, bindPwd);
PropertyCollection pcoll = userEntry.Properties;
foreach(string sc in pcoll.PropertyNames)
Console.WriteLine("\t" + sc + "\t" + pcoll[sc].Value);
}
catch (COMException e) {
Console.WriteLine(e.Message);
}
finally
{
userEntry.Dispose();
}
}

public static void Main() {
ListUserAndGroups("scenic");
}
}

Willy.

"Robert Chartier" <rob-n...@santra.com> wrote in message news:O74ILkRLCHA.2312@tkmsftngp13...