public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
{
var ac = values[0] as Acquirable[];
string currency = values[1] as string;
if (ac != null && currency != null)
{
float sum = (from a in ac select StaticCurrencyConverter.Convert(a.Cost, a.Currency, currency)).Sum();
return(string.Format("{0:0.00} {1}", sum, currency));
}
else
{
return(string.Empty);
}
}
private async void initRates()
{
StaticCurrencyConverter.Init();
rates = await new Fixer().GetRatesAsync();
notifyPropertyChanged("Rates");
}