I tried this but I just get “Object reference not set to an instance of an object”:
public PXSelectReadonly<SOOrder, Where<SOOrder.orderNbr, Equal<Required<SOOrder.orderNbr>>>> findOrder;
[PXOverride]
public void PostPersist(Action baseMethod)
{
baseMethod();
SOOrder order = this.findOrder.SelectSingle((object)this.Base.OrderList.Current.OrderNbr);
}