public void displaySolutionForm(CalculatorFormData data)
{
// Create new SolutionForm instance and pass the form data
Form solutionForm = new SolutionForm(data);
solutionForm.Show();
}
// Calculate and display solution form
private void calculateButton_Click(object sender, EventArgs e)
{
// Get form values
// ... Create struct on stack.
CalculatorFormData data = new CalculatorFormData();
// Get the checked radio button
foreach (var control in unitsRadioGroup.Controls)
{
RadioButton radio = control as RadioButton;
if (radio != null && radio.Checked && radio.Name == "radioKilogramsMeters")
{
data.units = Units.Metric;
}
else if (radio != null && radio.Checked && radio.Name == "radioPoundsFeet")
{
data.units = Units.Imperial;
}
else
{
// default
data.units = Units.Metric;
}
}
// Validate email field
if (!IsValidEmail(emailField.Text))
{
// Display input validation error in message box and inline
MessageBox.Show("Please enter a valid email address...", "Error");
emailErrorLabel.Show();
emailLabel.Hide();
return;
}
else
{
// Set defaults for email labels
emailErrorLabel.Hide();
emailLabel.Show();
data.email = emailField.Text;
}
// Input is validated by the control itself for the following
data.mass1 = Convert.ToInt32(mass1.Value);
data.mass2 = Convert.ToInt32(mass2.Value);
data.distance = Convert.ToInt32(distance.Value);
// Send data struct to solution form
displaySolutionForm(data);
}
// Calculate Gravitational Force
public static double calculateGravitationalForce(CalculatorFormData data)
{
double F = 0;
// Gravitational Constant
const double G = 6.6720e-11;
// Calculate mass product
int massProd = data.mass1 * data.mass2;
// Distance squared
int distSquared = data.distance ^ 2;
// Calculate force
F = G * (massProd / distSquared);
return(F);
}
