private void OnAuthorAdded(Author addedAuthor)
{
BookAuthor ba = new BookAuthor( )
{
Author = addedAuthor, Book = this
};
}
private void OnBookAdded(Book addedBook)
{
BookAuthor ba = new BookAuthor( )
{
Author = this, Book = addedBook
};
}
private void OnAuthorRemoved(Author removedAuthor)
{
BookAuthor baRecord = BookAuthors.SingleOrDefault(ba => ba.Book == this && ba.Author == removedAuthor);
if (baRecord != null)
{
baRecord.Remove( );
}
}
