I am trying to do the same,
I have the dataview being passed as a dataset to my function,
I’m referencing the dataview using the following:
(iOrderDtl is the name of the function parameter for dataview OrderDtl)
iOrderDtl.Tables["OrderDtl"].Rows[i].
but it doesn’t seem to recognize the columns
(when I try to use ctrl space to show context sensitive help)
maybe I have to use this syntax to get to the column level ?:
iOrderDtl.Tables["OrderDtl"].Rows[i]["OrderLine"]
Could you show a snippet of your code that references a column from a table in your dataview ?
-------EDIT after some testing-----
Actually, using this approach my dataview is not getting passed, this is what my setup looks like:
Function parameter:

Network request:
(empty dataview, my order has 2 lines)

thanks