private void detach_vatsubmission_details(vatsubmission_detail entity)
		{
			this.SendPropertyChanging();
			entity.vatsubmission = null;
		}
 partial void Updatevatsubmission_detail(vatsubmission_detail instance);
 partial void Deletevatsubmission_detail(vatsubmission_detail instance);
 partial void Insertvatsubmission_detail(vatsubmission_detail instance);