The new field has to be provided in the same service or baq that is populating the dataview that the grid is bound to. You can’t add a column to your grid and expect it to populate from some other dataview, unless you want to go through the headache of trying to get the iteration events to work.
I am trying to add the PO Total, PO Due Date, and PO Promise Date for context. I followed @hmwillett 's post 3 to the best of my ability, but I’m thinking I didn’t get the correct event for the main form loading (I’m trying to use the browser debugging, but not having a lot of luck with it). Does anyone have any recommendations as to either which event I should be setting this after or if I should switch gears and start trying the Method Directive version?