private void DeleteBookBtn_Click(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(bookComboBox.Text))
{
MessageBox.Show("Please select a book");
return;
}
//Get the selected book
Book selectedBook = (Book)bookComboBox.SelectedItem;
string message = $"Are you sure you want to delete {selectedBook.Title} {selectedBook.ISBN}?";
DialogResult result = MessageBox.Show(text: message,
caption: "Delete?",
buttons: MessageBoxButtons.YesNo,
icon: MessageBoxIcon.Question);
if (result == DialogResult.Yes)
{
try
{
//Remove in database
BookDB.Delete(selectedBook.ISBN);
//Remove from the list
customerComboBox.Items.Remove(selectedBook);
MessageBox.Show("Book deleted");
PopulateBookList();
bookComboBox.Text = "";
}
catch (SqlException)
{
MessageBox.Show("Delete unsuccessful. The book you are trying to delete is currently registered to a customer.");
}
catch (Exception)
{
MessageBox.Show("No books deleted");
}
}
}
