private void EditPublisher()
{
selectedPublisher = dataGridViewPublishers.SelectedRows[0].Tag as Publisher;
FormAddPublisher newPublisher = new FormAddPublisher(publishers, selectedPublisher);
newPublisher.ShowDialog();
selectedPublisher = null;
}
private void AddNewPublisher()
{
FormAddPublisher newPublisher = new FormAddPublisher(publishers, selectedPublisher);
newPublisher.ShowDialog();
}