2. Since we changed the structure of our Employee class, we need to update project to accommodate the updated Employee objects.

a. Change your Input form to get the Benefits information as well

b. Update the AddButton_Click event method to get the additional information and create Employee objects using Composition. private void AddButton_Click(object sender, EventArgs e) { // add item to the employee listbox InputForm frmInput = new InputForm(); using (frmInput) { DialogResult result = frmInput.ShowDialog(); // see if input form was cancelled if (result == DialogResult.Cancel) return; // end method since user cancelled the input // get user's input and create an Employee object string fName = frmInput.FirstNameTextBox.Text; string lName = frmInput.LastNameTextBox.Text; string ssn = frmInput.SSNTextBox.Text; string date = frmInput.HireDateTextBox.Text; DateTime hireDate = DateTime.Parse(date); string healthIns = frmInput.HealthInsTextBox.Text; double lifeIns = Double.Parse( frmInput.LifeInsTextBox.Text ); int vacation = Int32.Parse( frmInput.VacationTextBox.Text ); Benefits benefits = new Benefits(healthIns, lifeIns, vacation); Employee emp = new Employee(fName, lName, ssn, hireDate, benefits); // add the Employee object to the employees listbox EmployeesListBox.Items.Add(emp); // write all Employee objects to the file WriteEmpsToFile(); } }

c. Update the WriteEmpsToFile( ) method to write all of the Employee information, including the Benefits information: private void WriteEmpsToFile() { // write all Employee objects to the file string fileName = "Employees.csv"; StreamWriter sw = new StreamWriter(fileName); for (int i = 0; i < EmployeesListBox.Items.Count; i++) { Employee temp = (Employee)EmployeesListBox.Items[i]; sw.WriteLine(temp.FirstName + ',' + temp.LastName + ',' + temp.SSN + ',' + temp.HireDate.ToShortDateString() + ',' + temp.BenefitsPackage.HealthInsurance + ',' + temp.BenefitsPackage.LifeInsurance + ',' + temp.BenefitsPackage.Vacation); } sw.Close(); // tell user that the records were written to the file MessageBox.Show("Employees were written to the file."); }

d. Update the ReadEmpsFromFile( ) method to read all of the Employee information, including the Benefits information: private void ReadEmpsFromFile() { // read all Employee objects from the file string fileName = "Employees.csv"; StreamReader sr = new StreamReader(fileName); using (sr) { while (sr.Peek() > -1) { // read the line and break it into parts based on commas string line = sr.ReadLine(); string[] parts = line.Split(','); string fName = parts[0]; string lName = parts[1]; string ssn = parts[2]; DateTime hireDate = DateTime.Parse(parts[3]); string healthIns = parts[4]; double lifeIns = Double.Parse(parts[5]); int vacation = Int32.Parse(parts[6]); // create the Employee object and add it to the listbox Benefits benefits = new Benefits(healthIns, lifeIns, vacation); Employee emp = new Employee(fName, lName, ssn, hireDate, benefits); EmployeesListBox.Items.Add(emp); } } }

3. How can we see the details for our Employee objects? We can set up the double-click event on the listbox!

a. Add the double-click event to the listbox

b. In the double-click event, get the selected Employee object

c. Display the Employee object’s information in the InputForm, which we will repurpose as an Update form

d. If the user clicks the Cancel button, end the method

e. If the user clicks the Submit/Update button:

i. Delete the selected Employee object

ii. Create a new Employee object using the updated information

iii. Add the new Employee object to the listbox