public IEnumerable<QuestionBankDAO> GetQuestionBanks()
        {
            QuestionBankServiceClient client = new QuestionBankServiceClient();

            try
            {
                IEnumerable<QuestionBankDAO> result = client.GetQuestionBanks();
                return result;
            }
            catch (FaultException<KaskServiceException> e)
            {
                throw new HttpException(e.Message);
            }
        }