private void UpdateCurrencyButtons()
{
if (ForeignCurrencyButtons.Count() == 1 && ForeignCurrencyButtons.First().Parameter.ExchangeRate == 1)
{
ForeignCurrency = ForeignCurrencyButtons.First().Parameter;
ForeignCurrencyButtons.Clear();
}
foreach (var commandButtonViewModel in ForeignCurrencyButtons)
{
var pm = GetPaymentDueValue() / commandButtonViewModel.Parameter.ExchangeRate;
commandButtonViewModel.Caption = string.Format(commandButtonViewModel.Parameter.CurrencySymbol, pm);
}
}
