Formattig a "File As" Field

[djclntn]

In databases I often see a table which as a "File As" Field which displays the last name "," & then the first name combine into one field. I wish to have this in my Employee Table.

I.E.
FirstName LastName FileAs
Mark Jones Jones, Mark

I'm assuming that the "FileAs" field is a calculated (text) field, but I can't figure out the expression in Expression Builder.



I tried:
[FirstName]"," and [LastName]
[FirstName]"," + [LastName]
grealy
Any suggestions would be apprechiated!

[pbaldy]

LastName & ", " & FirstName

I doubt it's a calculated field, as it could vary by contact (if not, why bother?). It's probably calculated and stored.