private void OnSecondCurrencySelected(object sender, CurrencySelectedEventArgs e)
{
secondCurrency = e.Currency;
secondCurrencyLabel.Text = secondCurrency.CodeSymbol;
}
private void OnFirstCurrencySelected(object sender, CurrencySelectedEventArgs e)
{
firstCurrency = e.Currency;
firstCurrencyLabel.Text = firstCurrency.CodeSymbol;
}
