private void detach_AuthorISBNs(AuthorISBN entity)
 {
     this.SendPropertyChanging();
     entity.Title = null;
 }
 private void attach_AuthorISBNs(AuthorISBN entity)
 {
     this.SendPropertyChanging();
     entity.Title = this;
 }
 partial void UpdateAuthorISBN(AuthorISBN instance);
 partial void DeleteAuthorISBN(AuthorISBN instance);
 partial void InsertAuthorISBN(AuthorISBN instance);