I hava a dataTable with sales details.

In the product id field of the dataTable I open a modal panel with another dataTable showing a list of all products stored in the database to allow the user to select a specifc product.

When the user select a specific product in the modal panel I want to update the product id in the dataTable behind the modal panel. How can I do it?

In a modal panel how can I address a specific field of a dataTable on the window behind that openned the modal panel?

I know there is rowKey and rowKeyVar.

But how can I address a specific field of a specific row in a dataTable ?

If rowKeyVar = "itemId"

Can I use something like this "#{item.productId[#{itemId}]}"

I apreciate any help.

Thanks,
Samuel