Maybe you havent completed game?
There is no code for that, unfortuneatly.
A Pokedex cheat
use action replay
type on Google "action replay code for all Pokemon lvl 100 in diamond
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every week they put new codes for diamond and pearl www. cheat ds.com/action replay Pokemon
u have to have an action replay
you have to do your ds
action replay code to get unlimited every-poke-ball in Pokemon diamond?Read more: What_is_the_action_replay_code_to_get_unlimited_every-poke-ball_in_Pokemon_diamond
you need to go on Google.com and type in "wild Pokemon modifier" and you put the code in your action replay then you can get every single Pokemon in diamond!
no.
you cant