private void btnAdd_Click(object sender, RoutedEventArgs e)
{
// Adds the info from the textboxes to either a full time or part time employee class.
// This only works if the salary (or hoursworked and hourlyrate for a part time) are numbers
// Otherwise, it displays an error message on the top of the screen.
// If the FT radio is checked, create a fulltime employee, otherwise part time
if ((Boolean)FTradio.IsChecked)
{
decimal salary = 0;
// Attmpy to get salary, if it's not valid, display error msg
if (decimal.TryParse(tbxSalary.Text, out salary))
{
FullTimeEmployee emp = new FullTimeEmployee(tbxFirstName.Text, tbxSurname.Text, salary);
employees.Add(emp);
}
else
{
tbkMsg.Text = "Salary is not valid";
}
}
else if ((Boolean)PTradio.IsChecked)
{
decimal hourlyrate = 0;
double hoursworked = 0;
// If the hourly rate and works worked are not valid, display error msg
if (decimal.TryParse(tbxHourlyRate.Text, out hourlyrate) && double.TryParse(tbxHourlyRate.Text, out hoursworked))
{
// Make a new part time employee with the constuctors
PartTimeEmployee emp = new PartTimeEmployee(tbxFirstName.Text, tbxSurname.Text, hourlyrate, hoursworked);
employees.Add(emp);
}
else
{
tbkMsg.Text = "Hourly rate and hours worked must be numbers";
}
}
else
{
tbkMsg.Text = "A part time or full time option must be selected";
}
// Clears the info once done, then refresh the list
ClearInfo();
RefreshList();
}
private void LbxEmployees_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
// Puts info into the text boxes once
// one of the employees in the listbox is selected
// Clears the info
ClearInfo();
// Sets the employee selected to geneiric employee class
Employee SelectedEmployee = LbxEmployees.SelectedItem as Employee;
// If it is null, don't do anything
if (SelectedEmployee != null)
{
// Since the firstname and surname is common in FT and PT employee, you can set it
tbxFirstName.Text = SelectedEmployee.FirstName;
tbxSurname.Text = SelectedEmployee.Surname;
// If the emp is FT, cast it to FT and set the salary.
// This is because you can't access the derived class properties if it is not in the base class.
if (SelectedEmployee is FullTimeEmployee)
{
tbxSalary.Text = (SelectedEmployee as FullTimeEmployee).Salary.ToString();
// Set the radio button of Full time to true to show it is a full time employee
// Also for ease in updating
FTradio.IsChecked = true;
}
else if (SelectedEmployee is PartTimeEmployee)
{
// Same as above but with Part time properties
PartTimeEmployee PTtmp = SelectedEmployee as PartTimeEmployee;
tbxHourlyRate.Text = PTtmp.HourlyRate.ToString();
tbxHoursWorked.Text = PTtmp.HoursWorked.ToString();
PTradio.IsChecked = true;
}
// Calculate the montly pay and display it
tbkMonthlyPay.Text = String.Format("{0:0.00}", SelectedEmployee.CalculateMonthlyPay());
}
}
private void btnUpdate_Click(object sender, RoutedEventArgs e)
{
// Updates a selected employee object with info entered into the boxes.
// Only updates if the info is valid
// If you are changing an employees part/full time status, it make a new object and deletes the selected
// Get the selected employee
Employee SelectedEmployee = LbxEmployees.SelectedItem as Employee;
// If the employee exists
if (SelectedEmployee != null)
{
// If the employee is full time, try to get and set salary to the one in the textbox
if (SelectedEmployee is FullTimeEmployee)
{
// If the full time radio button is checked and the employee is fulltime, just change the values
if ((Boolean)FTradio.IsChecked)
{
FullTimeEmployee FTemp = SelectedEmployee as FullTimeEmployee;
decimal salary = 0;
if (decimal.TryParse(tbxSalary.Text, out salary))
{
FTemp.FirstName = tbxFirstName.Text;
FTemp.Surname = tbxSurname.Text;
FTemp.Salary = salary;
}
else
{
tbkMsg.Text = "Salary is not valid";
}
}
// If the part time button is checked, then make a new employee obj to replace the old one
else
{
decimal hourlyrate = 0;
double hoursworked = 0;
// If the hourly rate and works worked are not valid, display error msg
if (decimal.TryParse(tbxHourlyRate.Text, out hourlyrate) && double.TryParse(tbxHoursWorked.Text, out hoursworked))
{
// Make a new part time employee with the constuctors
employees.Remove(SelectedEmployee);
PartTimeEmployee emp = new PartTimeEmployee(tbxFirstName.Text, tbxSurname.Text, hourlyrate, hoursworked);
employees.Add(emp);
}
else
{
tbkMsg.Text = "Hourly rate and hours worked must be numbers";
}
}
}
else if (SelectedEmployee is PartTimeEmployee)
{
// If the part time radio button is checked and the employee is part time
// then parse the hourlyrate and hoursworked, and change the values of the partime
// employee obj
if ((Boolean)PTradio.IsChecked)
{
// Casting the selected employee to part time
PartTimeEmployee PTemp = SelectedEmployee as PartTimeEmployee;
decimal hourlyrate = 0;
double hoursworked = 0;
// Try to get the hourlyrate and hours worked. If successful, set them to the employee
if (decimal.TryParse(tbxHourlyRate.Text, out hourlyrate) && double.TryParse(tbxHoursWorked.Text, out hoursworked))
{
PTemp.FirstName = tbxFirstName.Text;
PTemp.Surname = tbxSurname.Text;
PTemp.HourlyRate = hourlyrate;
PTemp.HoursWorked = hoursworked;
}
else
{
tbkMsg.Text = "Hourly rate and hours worked not valid";
}
}
// If the ft radio button is checked, make a new fulltimeemployee class
// and then append to the list, and remove the previous employee class
else
{
decimal salary = 0;
// Attmpy to get salary, if it's not valid, display error msg
if (decimal.TryParse(tbxSalary.Text, out salary))
{
employees.Remove(SelectedEmployee);
FullTimeEmployee emp = new FullTimeEmployee(tbxFirstName.Text, tbxSurname.Text, salary);
employees.Add(emp);
}
else
{
tbkMsg.Text = "Salary is not valid";
}
}
}
else
{
tbkMsg.Text = "Select an employee to update";
}
}
else
{
tbkMsg.Text = "Select an employee to update";
}
ClearInfo();
RefreshList();
}
