private void bnAddBook_Click(object sender, EventArgs e)
{
// XXX Add Book button event handler
while (true)
{
try
{ // to capture an exception from Price/Stock of bookDialog
// also throw an exception if the ISBN is already registered
bookDialog.ClearDisplayItems();
if (bookDialog.ShowDialog() == DialogResult.Cancel)
{
return;
}
// Edit Done button is pressed
BookShopControl.addNewBook(bookDialog.BookTitle, bookDialog.Author, bookDialog.Publisher, bookDialog.ISBN, bookDialog.Price, bookDialog.Date, bookDialog.Stock);
return;
}
catch (BookShopException bsex)
{
MessageBox.Show(this, bsex.ErrorMessage);
continue;
}
}
}