partial void DeleteComment(Comment instance);
 partial void UpdateComment(Comment instance);
		private void detach_Comments(Comment entity)
		{
			this.SendPropertyChanging();
			entity.BlogPost = null;
		}
 partial void InsertComment(Comment instance);
		private void attach_Comments(Comment entity)
		{
			this.SendPropertyChanging();
			entity.BlogPost = this;
		}