How to check for no of files uploaded?

[Effendi]

We can control the number of files that the Upload control can upload at anyone time. However, when we retrieve a record that previously had files associated to it, how do we check for the balance? For example if I saved a record as draft and call it back later, how do I ensure that only 3 more files can be uploaded, this is assuming we only allow 5 files maximum to be uploaded for a record.

Regards