private void btnShowResult_Click(object sender, EventArgs e)
{
Class1 compute = new Class1();
if (txtFirstNumber.Text == String.Empty)
{
MessageBox.Show("First Number cannot be empty");
txtFirstNumber.Focus();
return;
}
if (txtSecondNumber.Text == String.Empty)
{
MessageBox.Show("Second Number cannot be empty");
txtSecondNumber.Focus();
return;
}
compute.FirstNumber = Convert.ToDouble(txtFirstNumber.Text);
compute.SecondNumber = Convert.ToDouble(txtSecondNumber.Text);
MessageBox.Show("The public result is: " + Convert.ToString(compute.ShowResult()));
txtSecondNumber.Text = String.Empty;
txtFirstNumber.Text = String.Empty;
}