private void btnCalculate_Click(object sender, RoutedEventArgs e)
{
try
{
double resultWindowArea, resultFrameSphere, resultFrameArea, windowWidht, windowHeight, frameWidht;
// Default value of 0 is used if tryparse fails
double.TryParse(txtWindowWidht.Text, out windowWidht);
double.TryParse(txtWindowHeight.Text, out windowHeight);
double.TryParse(txtFrameWidht.Text, out frameWidht);
// Calculate results
resultWindowArea = BusinessLogicWindow.CalculateWindowArea(windowWidht, windowHeight);
resultFrameSphere = BusinessLogicWindow.CalculateFrameSphere(windowWidht, windowHeight);
resultFrameArea = BusinessLogicWindow.CalculateFrameArea(windowWidht, windowHeight, frameWidht);
// Show results
txtWindowArea.Text = resultWindowArea.ToString();
txtFrameSphere.Text = resultFrameSphere.ToString();
txtFrameArea.Text = resultFrameArea.ToString();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}