// check changed, update boxes
private void radioButton1_CheckedChanged(object sender, EventArgs e)
{
if (MagazineRadio.Checked)
{
detailsBox.Text = aMagazine.ToString();
hardCopyBox.Text = aMagazine.GetHardCopyOption();
}
}
private void PresentationFormLoad(object sender, EventArgs e)
{
// instantation of ReadingMaterial derived classes
onlineArticle = new Online("How to play guitar", "John", "Michaels", "Infinite Publishing Company", new DateTime(2016, 10, 09), "guitars.com/howtoplay");
aMagazine = new Magazine("Sports Illustrated", "Hugh", "Guhsportsfan", "Sports Illustrated Publishing", new DateTime(2018, 05, 03), "May", 2018, new DateTime(2019, 05, 01));
aBook = new Book("The End of the World", "Contessa", "Jackson", "Doomsday Publishing", new DateTime(2013, 02, 14), "A1203Z2334", true);
// fill the initial box values since aMagazine is the one selected
detailsBox.Text = aMagazine.ToString();
hardCopyBox.Text = aMagazine.GetHardCopyOption();
}