private async void ConvertCurrency(string amount, string date)
{
ComboBoxItem from = CurrenciesFrom.SelectedItem as ComboBoxItem;
try
{
fromCurrency = (from.Content as String).Substring(0, 3);
}
catch
{
return;
}
ComboBoxItem to = CurrenciesTo.SelectedItem as ComboBoxItem;
toCurrency = (to.Content as String).Substring(0, 3);
if ((fromCurrency != lastFromCurrency || toCurrency != lastToCurrency) && (fromCurrency != toCurrency) || (date != lastDate))
{
lastDate = date;
exchangeRate = await erdp.GetExchangeRate(fromCurrency, toCurrency, date);
lastFromCurrency = fromCurrency;
lastToCurrency = toCurrency;
}
if (fromCurrency == toCurrency)
{
AmountToText = amount;
}
// Checks if AmountFrom textbox is empty or not
else if (double.TryParse(amount, out double result))
{
if (result * exchangeRate > 0.01)
{
AmountToText = string.Format("{0:#,###0.00}", result * exchangeRate);
}
else
{
decimal resultInDecimal = (decimal)(result * exchangeRate);
AmountToText = resultInDecimal.ToString();
}
}
else
{
AmountToText = "";
}
AmountFrom.Focus(FocusState.Programmatic);
}
private async void getCurrencies()
{
CurrencyDataProvider cdp = new CurrencyDataProvider();
Dictionary <string, Models.Currency> currencies;
try
{
currencies = await cdp.GetCurrencies();
}
catch
{
return;
}
ComboBoxItem currenciesFrom;
ComboBoxItem currenciesTo;
foreach (var cur in currencies.OrderBy(e => e.Value.CurrencyName))
{
if (cur.Value.CurrencySymbol == null)
{
currenciesFrom = new ComboBoxItem {
Content = cur.Key + " " + cur.Value.CurrencyName
};
currenciesTo = new ComboBoxItem {
Content = cur.Key + " " + cur.Value.CurrencyName
};
}
else
{
currenciesFrom = new ComboBoxItem {
Content = cur.Key + " " + cur.Value.CurrencyName + " (" + cur.Value.CurrencySymbol + ")"
};
currenciesTo = new ComboBoxItem {
Content = cur.Key + " " + cur.Value.CurrencyName + " (" + cur.Value.CurrencySymbol + ")"
};
}
CurrenciesFrom.Items.Add(currenciesFrom);
CurrenciesTo.Items.Add(currenciesTo);
}
CurrenciesFrom.SelectedIndex = 156;
CurrenciesTo.SelectedIndex = 143;
AmountFrom.Focus(FocusState.Programmatic);
}