How can I search Active Directory by username using C#?

Question

I\'m trying to search active directory by the username \'admin\'. I know for a fact that there is a user with that username in the directory, but the search keeps coming bac

Answer 1

this should work

private void showUsers(string pUserName)
    {
        string uid = Properties.Settings.Default.uid;
        string pwd = Properties.Settings.Default.pwd;
        using (var context = new PrincipalContext(ContextType.Domain, "YOURDOMAIN", uid, pwd))
        {
            using (UserPrincipal user = new UserPrincipal(context))
            {
                user.SamAccountName = pUserName;
                using (var searcher = new PrincipalSearcher(user))
                {
                    foreach (var result in searcher.FindAll())
                    {
                        DirectoryEntry de = result.GetUnderlyingObject() as DirectoryEntry;
                        Console.WriteLine("First Name: " + de.Properties["givenName"].Value);
                        Console.WriteLine("Last Name : " + de.Properties["sn"].Value);
                        Console.WriteLine("SAM account name   : " + de.Properties["samAccountName"].Value);
                        Console.WriteLine("User principal name: " + de.Properties["userPrincipalName"].Value);
                        Console.WriteLine("Mail: " + de.Properties["mail"].Value);

                        PrincipalSearchResult groups = result.GetGroups();

                        foreach (Principal item in groups)
                        {
                            Console.WriteLine("Groups: {0}: {1}", item.DisplayName, item.Name);
                        }
                        Console.WriteLine();
                    }
                }
            }
        }
        Console.WriteLine("End");
        Console.ReadLine();
    }