LearnLanguages.DataAccess.DalHelper.CheckAuthorizationToAddUser C# (CSharp) Method

    public static void CheckAuthorizationToAddUser()
    {
      if (!IsInRoleToAddUser())
        throw new Exceptions.UserNotAuthorizedException(DalResources.ErrorMsgAttemptedToAddUser, 0);
    }
    public static bool IsInRoleToAddUser()

        public Result <UserDto> New(object criteria)
        {
            Result <UserDto> retResult = Result <UserDto> .Undefined(null);

            try
            {
                Common.CommonHelper.CheckAuthentication();
                DalHelper.CheckAuthorizationToAddUser();

                var dto = NewImpl(criteria);
                retResult = Result <UserDto> .Success(dto);
            }
            catch (Exception ex)
            {
                var wrappedEx = new Exceptions.CreateFailedException(ex);
                retResult = Result <UserDto> .FailureWithInfo(null, wrappedEx);
            }
            return(retResult);
        }