private async Task UpdateCurrencies()
{
IsBusy = true;
var rest = new YahooXChangeRest();
var currencies = await rest.TakeExchangesAsync(
Currencies.ToListOfString(),
BaseCurrency.Name);
if (currencies == null)
{
new ModernDialog
{
Title = "Error",
Content = "Connection problems"
}.Show();
}
else
{
Currencies.Update(currencies);
}
IsBusy = false;
}
