Is this a custom dashboard?
If you had to manually add TransView… you may also need to initiate it in an form_onload type event.
Post below for reference. You can look up stock events on stock forms for details on how to do it. I think its just a row-update to jump start the dataview.
Also, in your message… try: "{TransView.PartFilter}"
Its a string… so you may need quotes around it.