VS 2010 how to create a combobox that is linked to a database

hello ! i'm a newbie with microsoft visual basic express 2010.

i'm trying to create a database and link it to 2 combobox.

the first box will be the main category, and the second the subcategory. (ive heard something about java ?)
exemple : the first one would be a type of paper, the second one the size available for it.
(each category doesnt have the same size available)

is it possible to have another box that's linked to a picture, depending what category i click on ?

thanks a lot :)