private void Display(Employee emp)
{
double _Tax = 0;
double _NetEarnings = 0;
_Tax = emp.Tax;
_NetEarnings = emp.NetEarnings;
txtCalcGrossEarnings.Text = emp.GrossEarnings.ToString("C2");
txtCalcTax.Text = _Tax.ToString("C2");
txtCalcNetEarnings.Text = _NetEarnings.ToString("C2");
txtName.Text = emp.Name;
if (emp.TypeOfEmployee == EmployeeType.Hourly)
{
// get all the hourly info hours and wage
rbtnHourly.Checked = true;
// THE NEXT LINE IS THE SOLUTION!!!
HourlyEmployee hrEmp = emp as HourlyEmployee;
txtWage.Text = hrEmp.HourlyWage.ToString();
txtHours.Text = hrEmp.HoursWorked.ToString();
}
else if (emp.TypeOfEmployee == EmployeeType.Commission)
{
rbtnCommission.Checked = true;
CommissionEmployee commEmp = emp as CommissionEmployee;
// now read the values back into the text fields
txtHours.Text = commEmp.GrossSales.ToString();
txtWage.Text = commEmp.CommissionRate.ToString();
}
else // this must be a salaried employee by elimination
{
rbtnSalary.Checked = true;
SalariedEmployee salEmp = emp as SalariedEmployee;
// now get the values and store it on the form
txtHours.Text = salEmp.Salary.ToString();
}
}
private void btn_Calculate_Click(object sender, EventArgs e)
{
string _EmployeeName = txtName.Text;
// before you run the code below, add an if statement here to check if the name already lists in the generic list
if (!cmbEmpList.Items.Contains(_EmployeeName) && _EmployeeName != "")
{
/* check the employee type from the button at the top.
* setup some sort of if then else to create the appropriate Object based on the type, and then fill in the proper data.
* Drop the thing into the list */
// IMPORTANT - ADD A SAFETY CHECK IN HERE TO ENSURE THAT AN INVALID VALUE SUCH AS TEXT IN A NUMERIC FIELD IS CAUGHT!!
int ii; double dd;
bool _CheckHours = int.TryParse(txtHours.Text, out ii);
bool _CheckWage = double.TryParse(txtWage.Text, out dd);
if (rbtnSalary.Checked && int.TryParse(txtHours.Text, out ii))
{
Console.WriteLine("User selected calculate, Salaryselected");
if (ii < 0)
{
// put a message here that hours are out of range
MessageBox.Show("The value entered for salary is not valid.");
}
else
{
// for this next bunch of variables, consider whether or not there is duplication and where to put the code;
Employee employee = new SalariedEmployee(_EmployeeName, EmployeeType.Salaried, Double.Parse(txtHours.Text));
cmbEmpList.Items.Add(employee.Name);
// now add the object to the generic list
employeesList.Add(employee);
Display(employee);
}
}
else if (rbtnCommission.Checked && int.TryParse(txtHours.Text, out ii) && double.TryParse(txtWage.Text, out dd))
{
Console.WriteLine("User selected calculate, Commission selected");
double _CommissionRate = 0;
_CommissionRate = Double.Parse(txtWage.Text);
if (ii < 0 || _CommissionRate < 0)
{
// put a message here that hours are out of range
MessageBox.Show("The number of hours/commission rate is out of range.");
}
else
{
Employee employee = new CommissionEmployee(_EmployeeName, EmployeeType.Commission, Double.Parse(txtHours.Text), _CommissionRate);
cmbEmpList.Items.Add(employee.Name);
// now add the object to the generic list
employeesList.Add(employee);
Display(employee);
}
}
else if (rbtnHourly.Checked && int.TryParse(txtHours.Text, out ii) && double.TryParse(txtWage.Text, out dd))
{
Console.WriteLine("User selected calculate, hourly selected");
if (ii < 0 || ii > 80 || dd < 0)
{
// put a message here that hours are out of range
MessageBox.Show("The number of hours / wage is out of range.");
}
else
{
Employee employee = new HourlyEmployee(_EmployeeName, EmployeeType.Hourly, int.Parse(txtHours.Text), double.Parse(txtWage.Text));
cmbEmpList.Items.Add(employee.Name);
// now add the object to the generic list
employeesList.Add(employee);
Display(employee);
}
}
else
{
MessageBox.Show("Text was entered but a number was expected.");
}
} // end contains check
else
{
MessageBox.Show("The name cannot be left blank, or already exists!");
}
}