Problem with database providers

I realize that I wasn't clear enough in explaining what I was trying to do.  I have a minor code table with a key code and a description.  I want to display the description so that a business user can pick say "Administrator" or "Power User" and the SRL that gets generated is "AD" or "PU".  So when the User is at the RMA they see the descriptions rather than the codes. I defined two values holders one for the code and one for the description, but I keep getting two selections and when I change the selected description, the code does not automatically change to the new selection's value.  How can I make this happen?

     Thanks,

     Tom