private IList <ChangePaymentType> GetChangePaymentTypes(PaymentType paymentType)
 {
     return(_foreignCurrencyButtonsViewModel.ForeignCurrency == null
         ? new List <ChangePaymentType>()
         : _applicationState.GetChangePaymentTypes().Where(x => x.AccountTransactionType.TargetAccountTypeId == paymentType.AccountTransactionType.SourceAccountTypeId).ToList());
 }