public async Task GetPublicCurrencies()
{
// Public currencies
List <TTCurrency> publicCurrencies;
if (string.IsNullOrEmpty(PublicCurrenciesFilter))
{
publicCurrencies = await _client.GetPublicAllCurrenciesAsync();
}
else
{
publicCurrencies = await _client.GetPublicCurrencyAsync(PublicCurrenciesFilter);
}
PublicCurrencies = publicCurrencies != null ? new ObservableCollection <TTCurrency>(publicCurrencies) : null;
}