Inheritance: INotifyPropertyChanging, INotifyPropertyChanged
		private void detach_Pages(Page entity)
		{
			this.SendPropertyChanging();
			entity.Visitor = null;
		}
		private void attach_Pages(Page entity)
		{
			this.SendPropertyChanging();
			entity.Visitor = this;
		}
 partial void UpdatePage(Page instance);
 partial void DeletePage(Page instance);
 partial void InsertPage(Page instance);