partial void DeleteAdditionalHardware(AdditionalHardware instance);
 partial void InsertAdditionalHardware(AdditionalHardware instance);
 partial void UpdateAdditionalHardware(AdditionalHardware instance);
		private void detach_AdditionalHardware(AdditionalHardware entity)
		{
			this.SendPropertyChanging();
			entity.PC = null;
		}