Display product images in a datagrid in 4 columns and X rows (VB.NET)

Hello I am building a POS system and would like to display a list of images all available products for selection.

So for example, if someone picks category: Shirts, a datagrid of images all Shirts in that category should appear.

The grid should show in a 4 by X matrix where X is the number of columns (dependant on the number of products obviously).

So the result should look something like this link (with only the pictures showing and no writing to keep it simple).

Any Ideas at all please? Not expecting code, just some guidance on how to kick this off.