Kinetic App: Multiple dataview row updates

I am looking to use a textbox control to take in data as a reference for all selected rows in a dataview. The order of things:

  1. Checkbox selected for each row in a dataview
  2. Textbox control input takes reference (no binding)
  3. Save button pressed.
  4. Check if textbox control isn’t empty. If not, update the dataview rows that are selected with the reference in a column.

Thanks!