/// <summary> /// Calls the SimpleMath SDK to do simple arithmetic /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void OnResultsClick(object sender, RoutedEventArgs e) { try { float firstNumber = float.Parse(this._firstNumber.Text); float secondNumber = float.Parse(this._secondNumber.Text); WinRTMath.Arithmetic math = new WinRTMath.Arithmetic(); switch (operation) { case "+": this._result.Text = (math.add(firstNumber, secondNumber)).ToString(); break; case "-": this._result.Text = (math.subtract(firstNumber, secondNumber)).ToString(); break; case "*": this._result.Text = (math.multiply(firstNumber, secondNumber)).ToString(); break; case "/": this._result.Text = (math.divide(firstNumber, secondNumber)).ToString(); break; default: this._result.Text = "Choose operator"; break; } } catch { this._result.Text = "Enter valid #"; } }