Fejl i data der hentes

I guess we are talking Access here!
You can build the expression using the "Expressin Builder". Right click on the Control Source property for the field and choose "build" from the menu. Thenits just a case of finding the correct forms and fields to use in the expression.

In your example you must make sure that these fields and forms do exist or you will get an error #Navn (#Name in english version)