Can you really use Display String formula to test for NULL
I am trying to manipulate the Display String of a field throught the Format Editor. If a field is null, it should display "N/A", or "No data given", or anything else appropriate I might choose.
I can't get this feature to work and I'm wondering if there's a bug here. I'm using the following formula:
if (isnull() or trim() = "")
Am I doing something wrong or is there a better way to do this?