public void NewCurrency(Currency currency)
 {
     try
     {
         using (CurrencyAccessClient _currencyAccessClient = new CurrencyAccessClient(EndpointName.CurrencyAccess))
         {
             _currencyAccessClient.Insert1(currency);
         }
     }
     catch (Exception)
     {
         throw;
     }
 }
        public CurrencyCollection AllCurrency()
        {
            try
            {
                using (CurrencyAccessClient _currencyAccessClient = new CurrencyAccessClient(EndpointName.CurrencyAccess))
                {
                    return new CurrencyCollection(_currencyAccessClient.QueryAll());
                }
            }
            catch (Exception)
            {

                throw;
            }
        }