private void textBoxDependents_Leave(object sender, EventArgs e)
{
// make sure data is numeric
int parseResult = 0;
int maxDependents = PaycheckCalculation.getMaxDependents();
// make sure data is numeric
if (int.TryParse(textBoxDependents.Text, out parseResult) == false)
{ // if can't parse
parseResult = 0; // reset to zero
}
parseResult = parseResult > maxDependents ? maxDependents : parseResult; // don't surpass max dependents
textBoxDependents.Text = parseResult.ToString("0"); // format correctly
}
private void buttonCalculate_Click(object sender, EventArgs e)
{
/* error handling */
/* After adding input correction, this error handling never really gets used */
bool success = true; // whether there were any errors
List <string> errorFields = new List <string>(); // list of fields which have an error
List <Label> fieldLabels = new List <Label> {
labelGross, labelDependents, labelMaritalStatus, labelPayPeriod
}; // input labels
/* init input variables */
PaycheckCalculation calculation;
string name = "";
double grossPay = 0.0;
int dependents = 0;
PaycheckCalculation.maritalStatusOptions maritalStatus;
PaycheckCalculation.payPeriodOptions payPeriod;
/* results */
double[] resultData;
/* clear errors */
foreach (Label lbl in fieldLabels)
{
lbl.clearError();
}
/* gather input */
name = ""; // not used in this version?
if (double.TryParse(textBoxGrossPay.Text, out grossPay) == false) // try to parse gross pay
{
success = labelGross.showError(ref errorFields);
}
if (int.TryParse(textBoxDependents.Text, out dependents) == false) // try to parse dependents
{
success = labelDependents.showError(ref errorFields);
}
else // check if max dependents has been reached
{
dependents = dependents > 10 ? 10 : dependents;
}
if (Enum.TryParse(comboBoxMaritalStatus.Text, true /* ignore case */, out maritalStatus) == false) // try to parse marital status
{
success = labelMaritalStatus.showError(ref errorFields);
}
if (Enum.TryParse(comboBoxPayPeriod.Text, true /* ignore case */, out payPeriod) == false)// try to parse pay period
{
success = labelPayPeriod.showError(ref errorFields);
}
/* success or failure */
if (success)
{
calculation = new PaycheckCalculation(name, grossPay, dependents, maritalStatus, payPeriod); // pass input to constructor
calculation.calculate(); // perform calculations
resultData = calculation.getResults(); // extract results for output
// display the results
textBoxResultGross.Text = resultData[0].ToString("0.00");
textBoxResultFederal.Text = resultData[1].ToString("0.00");
textBoxSocial.Text = resultData[2].ToString("0.00");
textBoxResultMedicare.Text = resultData[3].ToString("0.00");
textBoxResultNet.Text = resultData[4].ToString("0.00");
}
else // there was some issue with an input
{
// this scenario never errors
}
}