private void detach_SessionPictures(SessionPictures entity)
		{
			this.SendPropertyChanging();
			entity.Sessions = null;
		}
 partial void UpdateSessionPictures(SessionPictures instance);
		private void attach_SessionPictures(SessionPictures entity)
		{
			this.SendPropertyChanging();
			entity.Pictures = this;
		}
 partial void InsertSessionPictures(SessionPictures instance);
 partial void DeleteSessionPictures(SessionPictures instance);