App Studio - Update a textbox when another field changes

Kinetic ERP
1

Added a PrimCustID_c field to Part, to identify the primary customer of that part.
In App Studio:

  • Edited Part Maintenance and added the PrimCustID_c field.
  • Works fine.
  • Now I want that when the PrimCustID_c field changes (either due to changing to another part, or editing PrimCustID_c on a part, that a textbox next to it will populate with the Customer Name. (This textbox is just so users can view the associated customer name, not to edit or save it.)
  • I have a dataview added with a BAQ (PartCustomerName) with Customer.CustID and Customer.Name, and the dataview is a child view of LandingPage (also tried Part), with PrimCustID_c = CustID.
  • The customer name textbox has a EpBinding of PartCustomerName.Name.
  • The customer name textbox is not populating.
  • I’m at a loss as to how to get this textbox to populate.
  • I don’t see a toolbox type similar to search-value-set to do an event-based update of the field when PrimCustID_c changes. What am I missing?
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