Why not use binary values?

Choice 1 ---- 1
Choice 2 ---- 2
Choice 3 ---- 4
Choice 4 ---- 8
Choice 5 ---- 16
Choice 6 ---- 32

Sum the values to store them. You can then easily retrieve which choices were selected.

lnX = the sum

To check if Choice 1 was selected : ?Bittest(lnX,0)
To check if Choice 2 was selected : ?Bittest(lnX,1)
To check if Choice 3 was selected : ?Bittest(lnX,2)
Note that the value after lnX is one lower than expected, since Bittest() is zero based.

>Hi,
>
>I am looking for a formula (if possible) to convert a multiple choice(s) into a number. Kind of like the VFP Anchor property bit value works. Here is my example:
>Choice 1 ---- ##
>Choice 2 ---- ##
>Choice 3 ---- ##
>Choice 4 ---- ##
>Choice 5 ---- ##
>Choice 6 ---- ##
>
>Each choice above would have a number (##). Then when a user checks any number of choices (from 1 to 6), the "total" number is calculated. This "total" number should be unique for any combination of the selected choices. So that this number can be used (in reverse) to see what choices it represent.
>Any suggestions?