Query From LDAP for User Groups

Question

How To Get User group of user from LDAP active directory in C# .NET for ASP. In my Scenario I want to Pass user name to method which query from LDAP Active directory and tell me my user is Member of This User Groups. Please help me in this

Answer 1

If you're on .NET 3.5 or newer, you can also use the new System.DirectoryServices.AccountManagement (S.DS.AM) namespaces.

With this, you can do something like:

// create context for domain
PrincipalContext ctx = new PrincipalContext(ContextType.Domain);

// find the user
UserPrincipal up = UserPrincipal.FindByIdentity(ctx, "YourUserName");

if(up != null)
{
    // get groups for that user
    var authGroups = up.GetAuthorizationGroups();
}

Read more about the new S.DS.AM namespace:

Managing Directory Security Principals in the .NET Framework 3.5