public static decimal GrossPay(string strNumbers, decimal payrate)
{
decimal totalhours = Ex3bCalculations.TotalHours(strNumbers);
decimal grossPay = Ex3bCalculations.GrossPay(totalhours, payrate);
return(grossPay);
}
private void calcButton_Click(object sender, RoutedEventArgs e)
{
// 0 Calculate discountPercent
try
{
decimal subtotal = Decimal.Parse(inputTextBox0a.Text);
decimal discountPercent = Ex3bCalculations.GetDiscountPercent(subtotal);
resultTextBox0.Text = discountPercent.ToString("f3");
}
catch
{
resultTextBox0.Text = "";
MessageBox.Show("Invalid input: " + this.inputTextBox0a.Text);
}
// 1 Calculate discountPercent using output argument
try
{
decimal subtotal = Decimal.Parse(inputTextBox1a.Text);
decimal discountPercent;
Ex3bCalculations.GetDiscountPercent(subtotal, out discountPercent);
resultTextBox1.Text = discountPercent.ToString("f3");
}
catch
{
resultTextBox1.Text = "";
MessageBox.Show("Invalid input: " + this.inputTextBox1a.Text);
}
// 2 Calculate futureValue
try
{
int months = Int32.Parse(inputTextBox2a.Text);
decimal monthlyInvestment = Decimal.Parse(inputTextBox2b.Text);
decimal monthlyInterestRate = Decimal.Parse(inputTextBox2c.Text);
decimal futureValue = Ex3bCalculations.CalculateFutureValue(monthlyInvestment, monthlyInterestRate, months);
resultTextBox2.Text = futureValue.ToString("c2");
}
catch
{
resultTextBox2.Text = "";
MessageBox.Show("Invalid input:\n"
+ this.inputTextBox2a.Text + "\n"
+ this.inputTextBox2b.Text + "\n"
+ this.inputTextBox2c.Text + "\n");
}
// 3 Calculate futureValue using ref argument
try
{
int months = Int32.Parse(inputTextBox3a.Text);
decimal monthlyInvestment = Decimal.Parse(inputTextBox3b.Text);
decimal monthlyInterestRate = Decimal.Parse(inputTextBox3c.Text);
decimal futureValue = 0m;
Ex3bCalculations.CalculateFutureValue(monthlyInvestment, monthlyInterestRate, months, ref futureValue);
resultTextBox3.Text = futureValue.ToString("c2");
}
catch
{
resultTextBox3.Text = "";
MessageBox.Show("Invalid input:\n"
+ this.inputTextBox3a.Text + "\n"
+ this.inputTextBox3b.Text + "\n"
+ this.inputTextBox3c.Text + "\n");
}
// 4 Calculate degrees celsius
try
{
double fahrenheit = Double.Parse(inputTextBox4a.Text);
double celsius = Ex3bCalculations.FahrenheitToCelsius(fahrenheit);
resultTextBox4.Text = celsius.ToString("f1");
}
catch
{
resultTextBox4.Text = "";
MessageBox.Show("Invalid input: " + this.inputTextBox4a.Text);
}
// 5 Calculate degrees fahrenheit using out argument
try
{
double celsius = Double.Parse(inputTextBox5a.Text);
double fahrenheit;
Ex3bCalculations.CelsiusToFahrenheit(celsius, out fahrenheit);
resultTextBox5.Text = fahrenheit.ToString("f1");
}
catch
{
resultTextBox5.Text = "";
MessageBox.Show("Invalid input: " + this.inputTextBox5a.Text);
}
// 6 Calculate GrossPay
try
{
decimal hours = Decimal.Parse(inputTextBox6a.Text);
decimal payrate = Decimal.Parse(inputTextBox6b.Text);
decimal pay = Ex3bCalculations.GrossPay(hours, payrate);
resultTextBox6.Text = pay.ToString("c2");
}
catch
{
resultTextBox6.Text = "";
MessageBox.Show("Invalid input:\n"
+ this.inputTextBox6a.Text + "\n"
+ this.inputTextBox6b.Text + "\n");
}
// 7 TotalHours(strNumbers)
try
{
this.resultTextBox7.Text =
Ex3bCalculations.TotalHours(this.inputTextBox7a.Text).ToString("n2");
}
catch
{
resultTextBox7.Text = "";
MessageBox.Show("Invalid input: " + this.inputTextBox7a.Text);
}
// 8 GrossPay(strNumbers, payRate)
try
{
string strNumbers = inputTextBox8a.Text;
decimal payrate = Decimal.Parse(inputTextBox8b.Text);
decimal pay = Ex3bCalculations.GrossPay(strNumbers, payrate);
resultTextBox8.Text = pay.ToString("c2");
}
catch
{
resultTextBox8.Text = "";
MessageBox.Show("Invalid input:\n"
+ this.inputTextBox8a.Text + "\n"
+ this.inputTextBox8b.Text + "\n");
}
}