Sample Source Code
dotnetCURRENCY.Currency Objcur = new dotnetCURRENCY.Currency();
string originalCurrency = OriginalCurrency.SelectedItem.Text;
string convertedCurrency = ConvertedCurrency.SelectedItem.Text;
double amount = double.Parse(Amount.Text);
ConvertedAmount.Text = Objcur.ConvertFormat(amount, convertedCurrency, originalCurrency);