Customized Button Component. (Up and Down Arrow on Button Component)

I am new to VB.NET. I want the BUTTON COMPONENT customized with UP
AND DOWN ARROW MARKS so that I can
avail the drop down (contents) functionality on the click of that down-
arrow on the button. And vice-versa on the up-
arrow on the same button.

So how to customize this button to get this functionality over it ?

I would really appreciate fthe responses .

Thanks.

[398 byte] By [Prodigy201] at [2007-12-22]