I have a checkbox which, if checked, directs the user to an option box to select an option. If the user selects an option, then decides that his original choice was incorrect and he unchecks the checkbox, how can I get the option button to deselect?

I Tried:

If Checkbox = False Then
IsNull (OptionGroup)
End If

To no avail.

Thanks for your help,
Peter Paul

if not checkbox then
optiongroup = null
optiongroup.visible=false
else
optiongroup.visible=true
end if

Many thanks, I got it to work
Peter