switchstyle on controlarray

I would like to change the switchstyle (from VERTICALTOGGLE to PUSHBUTT0N3D) in a SwitchArray.  I can do that with at design time but I can't seem to find out how to do it at run time (i.e., programmatically).

Attached is a VB.net project that creates a 8 × 4 LED or Switch matrix.  I'd like the switchs to be PUSHBOTTTON3D.

Thanks.