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; }