How to determine if a user is member of a group

From: Albert Waelti (albert.waelti@gmx.net)
Date: 09/04/02 

From: "Albert Waelti" <albert.waelti@gmx.net>
Date: Wed, 4 Sep 2002 07:37:28 -0700

Hi

I used ASP.NET to built a web site. The login process is
done using LDAP. This works fine and if an invalid user or
password is entered I get an exception and display an
error message.

Now I'd like to test if the user belongs to a particular
group. How can I do this ?

The DirectoryEntry "memberof" lists all the groups to
which the user belongs, except the primary group. How can
I test if the primary group is the group I'm looking for ?

Any example will be welcomed.
Thanks in advance.

Albert

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