Change embedded toggle button pic?

[BobSchleicher]

I have a toggle button with an embedded picture of sort ascending. What I would like to do is on click to change the picture from sort ascending to the embedded picture of sort descending.

If tglSort1 = True Then
Me.tglSort1.Picture = SortDescending
Else
Me.tglSort1.Picture = SortAscending
End If

This is what I have and obviously it doesn't work.

Thanks,

BobSchleicher