public string WithdrawCash(Transaction transaction)
{
var amount = transaction.Amount * ExchangeHelper.CurrencyExchange().GetValueOrDefault(transaction.Currency.ToString());
if (!CheckBalance(amount))
{
return("Withdraw amount exceeds account balance.");
}
Account.Balance -= amount;
return(string.Empty);
}
public void DepositCash(Transaction transaction)
{
var amount = transaction.Amount * ExchangeHelper.CurrencyExchange().GetValueOrDefault(transaction.Currency.ToString());
Account.Balance += amount;
}