public HomeController(ICurrenciesListHelper currenciesListHelper, IDatesRangeHelper datesRangeHelper,
IRateHelper rateHelper)
{
_currenciesListHelper = currenciesListHelper;
_datesRangeHelper = datesRangeHelper;
_rateHelper = rateHelper;
}
public ShellViewModel(IDatesRangeHelper dateRangeHelper,
ICurrenciesListHelper currenciesListHelper, IRateHelper rateHelper)
{
_datesRangeHelper = dateRangeHelper;
_currenciesListHelper = currenciesListHelper;
_rateHelper = rateHelper;
Calculate = new CalculateCommand(Calculator);
CallGetRateAsync = new GetRateCommand(GetRateAsync, GetRateAsyncCanExecute);
}