If I have to further explain this, you're on your own. I've done way more than I should have to already.
What's even better is the fact that you can't use the codes regardless because you only have an AR with no save file editing capability (Which you're already aware of.), yet you're still asking things like this. Then you have the audacity to start to get hostile with me when you're the one wasting others' time by not spending your own to figure out your OWN problem. (Note: If you REALLY think that the Pokedex code length is determined by the currently selected Pokemon in the main dialog or something [wtF?], why not deselect one and see if the code length changes? Oh wait, that'd mean helping yourself.)