show orders only that dont have any return to order

ahmedba

I make report this report for invoiced sales order then i make return to specified order

but problem this order until now he display in report of invoiced sales order how i prevent it from display

report design consist from

sales invoice header

sales invoice line(indendnt)

now what i need is to tell him if order no found in two tables then select all from sales invoice line without returned
i write this code but not work
salesline.setrange(return recipt header.order no,sales invoice line.order no)
if sales line.find first
current report.skip
but it not work are any on

ahmedba

Any one know how i correct this code

ahmedba

any one help me
thanks