string[] IMembershipManager.GetAllUsers(string application)
    {
        Membership.ApplicationName = application;
        MembershipUserCollection   collection = Membership.GetAllUsers();
        Converter <object, string> converter  = (obj) =>
        {
            MembershipUser membershipUser = obj as MembershipUser;
            return(membershipUser.UserName);
        };

        return(collection.UnsafeToArray(converter));
    }