private void NumberPassing(string value) { if (state == StateOfCalc.OPERATIONSET) { state = StateOfCalc.SECTOSET; InsertedValue = String.Empty; } else if (state == StateOfCalc.RESULT) { InsertedValue = String.Empty; state = StateOfCalc.FIRSTTOSET; } if ("," == value) { if (InsertedValue.Contains(",")) { return; } else if (InsertedValue == String.Empty) { InsertedValue = "0,"; return; } } InsertedValue += value; }
private void SetOperation(string obj) { switch (state) { case StateOfCalc.FIRSTTOSET: if (InsertedValue != String.Empty) { number1 = ParsetoDouble(InsertedValue); state = StateOfCalc.OPERATIONSET; SetOperationOfCalc(obj); } break; case StateOfCalc.OPERATIONSET: SetOperationOfCalc(obj); break; case StateOfCalc.SECTOSET: operation = Operation.NONE; state = StateOfCalc.FIRSTTOSET; break; } InsertedValue = String.Empty; }
private void SetOperationOfCalc(string obj) { switch (obj) { case "+": operation = Operation.ADD; state = StateOfCalc.OPERATIONSET; break; case "-": operation = Operation.SUB; state = StateOfCalc.OPERATIONSET; break; case "*": operation = Operation.MUL; state = StateOfCalc.OPERATIONSET; break; case "/": operation = Operation.DIV; state = StateOfCalc.OPERATIONSET; break; case "C": operation = Operation.NONE; state = StateOfCalc.FIRSTTOSET; break; } }
private void operationBtn_Click(object sender, EventArgs e) { Button btn = sender as Button; switch (state) { case StateOfCalc.FIRSTTOSET: if (InsertedValue != String.Empty) { number1 = ParsetoDouble(InsertedValue); state = StateOfCalc.OPERATIONSET; SetOperationOfCalc(btn.Text); } break; case StateOfCalc.OPERATIONSET: SetOperationOfCalc(btn.Text); break; case StateOfCalc.SECTOSET: operation = Operation.NONE; state = StateOfCalc.FIRSTTOSET; break; } InsertedValue = String.Empty; }
private void num_Click(object sender, EventArgs e) { Button btn = sender as Button; if (state == StateOfCalc.OPERATIONSET) { state = StateOfCalc.SECTOSET; InsertedValue = String.Empty; } else if (state == StateOfCalc.RESULT) { InsertedValue = String.Empty; state = StateOfCalc.FIRSTTOSET; } if ("," == btn.Text) { if (InsertedValue.Contains(",")) { return; } else if (InsertedValue == String.Empty) { InsertedValue = "0,"; return; } } InsertedValue += btn.Text; }
private void CalculateResult() { if (state == StateOfCalc.SECTOSET) { number2 = ParsetoDouble(InsertedValue); try { switch (operation) { case Operation.ADD: InsertedValue = calcEngine.Addition(number1, number2).Result.ToString(); break; case Operation.SUB: InsertedValue = calcEngine.Subtraction(number1, number2).Result.ToString(); break; case Operation.MUL: InsertedValue = calcEngine.Multiplication(number1, number2).Result.ToString(); break; case Operation.DIV: if (number2.Equals(0)) { InsertedValue = "Can't div by ZERO"; return; } InsertedValue = calcEngine.Division(number1, number2).Result.ToString(); break; } state = StateOfCalc.RESULT; } catch (Exception e) { MessagingCenter.Send(new MessagingCenterAlert { Title = "Error", Message = e.Message, Cancel = "OK" }, "message"); } } }
private void CalculateResult() { if (state == StateOfCalc.SECTOSET) { number2 = ParsetoDouble(InsertedValue); try { switch (operation) { case Operation.ADD: InsertedValue = calcEngine.Addition(number1, number2).Result.ToString(); break; case Operation.SUB: InsertedValue = calcEngine.Subtraction(number1, number2).Result.ToString(); break; case Operation.MUL: InsertedValue = calcEngine.Multiplication(number1, number2).Result.ToString(); break; case Operation.DIV: if (number2.Equals(0)) { InsertedValue = "Can't div by ZERO"; return; } InsertedValue = calcEngine.Division(number1, number2).Result.ToString(); break; } state = StateOfCalc.RESULT; } catch (Exception e) { } } }