private void detach_SessionVideo(SessionVideo entity)
		{
			this.SendPropertyChanging();
			entity.Video = null;
		}
		private void attach_SessionVideo(SessionVideo entity)
		{
			this.SendPropertyChanging();
			entity.Video = this;
		}
 partial void UpdateSessionVideo(SessionVideo instance);
 partial void DeleteSessionVideo(SessionVideo instance);
 partial void InsertSessionVideo(SessionVideo instance);