private void Button_Clicked(object sender, EventArgs e) { if (String.IsNullOrEmpty(FirstCurrency) || String.IsNullOrEmpty(SecondCurrency)) { DisplayAlert("Ошибка", "Выберите валюты", "OK"); } else { CurrencyCalculator calculator = CurrencyCalculator.getInstance(); calculator.FirstCurrency = FirstCurrency; calculator.SecondCurrency = SecondCurrency; Navigation.PushModalAsync(new Page1(FirstCurrency, SecondCurrency)); } }
private void Button_Clicked(object sender, EventArgs e) { if (String.IsNullOrEmpty(entry.Text)) { DisplayAlert("Ошибка", "Введите номинал", "OK"); } if (Convert.ToInt32(entry.Text) < 0) { DisplayAlert("Ошибка", "Ddtlbnt положительное число", "OK"); } else { CurrencyCalculator calculator = CurrencyCalculator.getInstance(); calculator.Value = Value; float reponse = calculator.Calculate(); result.Text = Convert.ToString(reponse); } }
private async void Connect() { CurrencyCalculator calculator = CurrencyCalculator.getInstance(); await calculator.ConnectToServerAsync(); }