increment number for each table row

[#1]

i need to increment the the number in the line column for each item row of the table(1,2,3...etc.). not all the items are showing, some are excluded based on the item's action($.PurchaseOrder.Item.[ActionCode <> "03"])

[#2]

Add the following script to the index change event of Row1

colitem.rawValue = this.index + 1;