In my winform, I have three group boxes, based on selection of the 
items in a combobox the second group box(at the center) 
is hidden using **groupbox.visible** property.
The problem is when the second goupbox is hidden, there
seems to be an empty space in the area of the hidden group box, 
I want to move the third group box to the place where second 
group box is present. Can I use any other control instead of group box?