partial void DeleteGRWCHEMSAMPLE(GRWCHEMSAMPLE instance);
 partial void InsertGRWCHEMSAMPLE(GRWCHEMSAMPLE instance);
 partial void UpdateGRWCHEMSAMPLE(GRWCHEMSAMPLE instance);
		private void detach_GRWCHEMSAMPLEs(GRWCHEMSAMPLE entity)
		{
			this.SendPropertyChanging();
			entity.BOREHOLE = null;
		}