Populating a portal from another table

[osxfoundry]

Hi,

I've been trying to solve this issue for a while.

Here is the deal.

I have a order table and orderItem table (which track item ordered).

orderitem is also linked to Product table.

FYI, I had to add productName, productCategory in orderItem table as look-up fied, otherwise, the productName (from Product table) would not show up when I was adding a row. It would after I go to the next row in the portal.

I have 2 other tables called ShippingOrder and ShippingOrderItem.

When I go to ShippingOrder layout, i click on New which open window where I can select the actual order i want to ship. (shippingOrder layout is for recuring orders).

ShippingOrder layout has a portal which show related records from shippingorderItem.

I'd like to populate that portal based on the orderItem table that correspond to orderId I selected.

I'm pretty sure it can be done. Let me know. I would appreciate.