//Clears the form for the next user data input. private void ClearButton_Click(object sender, EventArgs e) { DetailsGroupBox.Enabled = true; DetailsGroupBox.Visible = true; CalculateGroupBox.Visible = false; SummaryGroupBox.Visible = false; FullFareTextBox.Text = string.Empty; StudentRiderTextBox.Text = string.Empty; DiscountRiderTextBox.Text = string.Empty; DriversNameTextBox.Text = string.Empty; DriversNameTextBox.Focus(); CalculateButton.Enabled = true; SummaryButton.Enabled = false; }
private void CalculateButton_Click(object sender, EventArgs e) { int NoOfFullFareRider = 0, NoOfStudentRider = 0, NoOfDiscountRider = 0, NoOfTotalPassenger = 0; //This block is executed until an exception is thrown. try { if (DriversNameTextBox.Text != "") { //Counts the total drivers in the company. CalculateNameDisplay.Text = DriversNameTextBox.Text; if (CalculateNameDisplay.Text != "") { TotalDrivers = TotalDrivers + 1; } /* * Parsing the input values into an integer and displaying the total passengers. * Parsed values are stored inside the assigned int var. */ TotalPassengerDisplayLabel.Text = ((NoOfFullFareRider = int.Parse(FullFareTextBox.Text)) + (NoOfStudentRider = int.Parse(StudentRiderTextBox.Text)) + (NoOfDiscountRider = int.Parse(DiscountRiderTextBox.Text))).ToString(); NoOfTotalPassenger = NoOfFullFareRider + NoOfStudentRider + NoOfDiscountRider; TotalFare = NoOfFullFareRider * FullFare + NoOfStudentRider * StudentFare + NoOfDiscountRider * DiscountFare; //Currency Formatting is done do display amount in euros. TotalReceiptsDisplay.Text = (TotalFare).ToString("C", new CultureInfo("en-FR")); CalculateButton.Enabled = false; SummaryButton.Enabled = true; DetailsGroupBox.Enabled = false; CalculateGroupBox.Visible = true; AvgReceiptsDisplay.Text = (TotalFare / NoOfTotalPassenger).ToString("c", new CultureInfo("en-FR")); //Counts the total passengers & receipts if condition satisfies. if (NoOfFullFareRider != 0 && NoOfStudentRider != 0 && NoOfDiscountRider != 0) { TotalPassengers = TotalPassengers + NoOfTotalPassenger; TotalReceipts = TotalReceipts + TotalFare; } } else { MessageBox.Show("Please enter driver name", "No Data", MessageBoxButtons.OK, MessageBoxIcon.Error); DriversNameTextBox.Focus(); } } //This block handles an exception if found. catch { if (NoOfFullFareRider != 0) { if (NoOfStudentRider != 0) { if (NoOfDiscountRider != 0) { } /* * Every else block displays an error message respective to its if condition, * Empties and focusses on the box of error. * Decrements the default increment of total drivers. */ else { MessageBox.Show("Please enter numerical data for discount rider", "Data Entry Error", MessageBoxButtons.OK, MessageBoxIcon.Error); DiscountRiderTextBox.Text = string.Empty; DiscountRiderTextBox.Focus(); TotalDrivers -= 1; } } else { MessageBox.Show("Please enter numerical data for student rider", "Data Entry Error", MessageBoxButtons.OK, MessageBoxIcon.Error); StudentRiderTextBox.Text = string.Empty; StudentRiderTextBox.Focus(); TotalDrivers -= 1; } } else { MessageBox.Show("Please enter numerical data for full fare rider", "Data Entry Error", MessageBoxButtons.OK, MessageBoxIcon.Error); FullFareTextBox.Text = string.Empty; FullFareTextBox.Focus(); TotalDrivers -= 1; } } }