Get the list of Groups for the given UserPrincipal

Question

I want to get the list of groups which the user is in.

This is my code:

PrincipalContext ctx = new PrincipalContext(ContextType.Domain, \"mydomain.         


        

Answer 1

When omitting the LDAP container property as described in PrincipalContext Class, the user running the code must have read permissions to both the default User Container (i.e. CN=Users,DC=yourDomain,DC=COM) and the Computers Container (i.e. CN=Computers,DC=yourDomain,DC=COM).

If the user does not have the required permissions you will get the following error messages:

The specified directory service attribute or value does not exist

• ‘context.Container’ threw an exception of type ‘System.NullReferenceException’ string {System.NullReferenceException}

• ((new System.Linq.SystemCore_EnumerableDebugView(groups)).Items[5]).Description’ threw an exception of type ‘System.Runtime.InteropServices.COMException’ string {System.Runtime.InteropServices.COMException}

Answer 2

try something like

foreach(Principal p in results)
{ 
   if (p is GroupPrincipal) 
      Response.Write(p.DisplayName); 
}

I know it sounds dumb, but it has worked for me in the past. Your results look like it only actually found 1 security group and 8 "other" types of groups. Those "other" groups may not possess those attributes.