private void detach_Vehicles(Vehicles entity)
		{
			this.SendPropertyChanging();
			entity.Year = null;
		}
		private void attach_Vehicles(Vehicles entity)
		{
			this.SendPropertyChanging();
			entity.Year = this;
		}
 partial void UpdateVehicles(Vehicles instance);
 partial void DeleteVehicles(Vehicles instance);
 partial void InsertVehicles(Vehicles instance);