partial void DeleteMonitor(Monitor instance);
 partial void UpdateMonitor(Monitor instance);
		private void detach_Monitor(Monitor entity)
		{
			this.SendPropertyChanging();
			entity.PC = null;
		}
 partial void InsertMonitor(Monitor instance);
		private void attach_Monitor(Monitor entity)
		{
			this.SendPropertyChanging();
			entity.PC = this;
		}