Can I use VBA function to return a (dynamic) list of acceptable values into Excel's data validation?

Question

For a given cell, I select Data/Validation and set Allow to \"List\". I now wish to set Source like so:

=rNames(REGS)

but that does not work (name not found

Answer 1

Couln't you rather use dynamic range names ? That's quite easy and does not require any vba.