I finally have a use for having some few graphics in a grid column, and do not know how to proceed.

I have a column where the values are '+' or '-' (um, or blank). Clicking on the +/- expands or contracts detail data "underneath".

Right now, I'm just using a textbox with values '+' or '-', but its pretty unattractive.

I assume I'll be using DynamicCurrentControl to select between different graphics.

So, what kind of control do I use for the graphics? And, where do I find some nice graphics for '+' and '-'? (I don't even know what file extensions are usable.)

Thanks