private void detach_CarInfo(CarInfo entity)
		{
			this.SendPropertyChanging();
			entity.DeviceInfo = null;
		}
		private void attach_CarInfo(CarInfo entity)
		{
			this.SendPropertyChanging();
			entity.DeviceInfo = this;
		}
 partial void UpdateCarInfo(CarInfo instance);
 partial void DeleteCarInfo(CarInfo instance);
 partial void InsertCarInfo(CarInfo instance);