Update document header total

Hi,

In the POReceiptLines I added a new action that open an smart panel with a grid. In the grid the user can add multiple lines and when the user click the ok button, I have a custom logic, that select all lines from the smart panel and recalculate receipt quantity for the selected line.  

The problem that I have is that the header of the receipt is not refreshing. Do I need to calculate and update the poreceipt table?

I'm updating the line with this code.

     Base.transactions.Cache.SetValueExt<POReceiptLine.receiptQty>(row, NewQty);

Thanks,

ed