AddRange

[Bars]

 
SELECT * FROM inventtable
inner join inventsum
on inventtable.itemid = inventsum.itemid
where InventSum.Inventdimid = ' ??00000031' AND
InventSum.PostedQty + InventSum.Received - InventSum.Deducted + InventSum.Registered - InventSum.Picked - InventSum.ReservPhysical > 0 

например вот так.....

условие добавляется на датасорс формы