Hi Tom -

Thanks for your helpful reply. For some reason, Excel doesn't like
this statement:

Set chbox2 = ActiveSheet.CheckBoxes("Checkbox" & CLng(num) + 64)

....though I can't find anything wrong with it myself. It gives me an
error window with the number "400" on it, and an option to click OK or
Help. Clicking Help does nothing.

Any ideas?

Thanks,
Stephan

"Tom Ogilvy" wrote in message ...
application.Caller will give you the name of the checkbox

Sub GlobalCheckbox_click()
dim chbox as Checkbox
dim chbox2 as Checkbox
dim sName as String, num as String
sName = application.Caller
set chbox = activesheet.Checkboxes(sName)
' next if block not needed if you only assign to checkboxes
' where the activity should happen
if chbox.TopLeftCell.Column = 1 then ' column A
if chbox.Value = xlOn then
' get number in name
if chbox.topLeftCell.row < 10 then
num = right(sname,1)
else
num = left(sName,1)
end if
set chbox2 = activesheet.Checkboxes("Checkbox" _
& clng(num)+64 )
chbox2.Value = xlon
end if
end if
End sub

make adjustments for the actual locations of your checkboxes in terms of
single digit values (less than 10) and column

Only assign the macro to checkboxes which should exhibit this behavior.
consider the code a pseudocode since it hasn't been tested and may contain
typos. Note that application.caller will not be defined if you try to run
the code manually using the run command or call from another routine.
--
Regards,
Tom Ogilvy



"S. Romano" wrote in message
om...
I have a workbook with a few worksheets in it. One of the worksheets
has 160 "Forms" style checkboxes, arranged in rows of 5. The numbering
for the checkboxes is seqential in columns - that is, the first column
has CheckBox1 through CheckBox32, the second one contains CheckBox33
through CheckBox64, etc.

Here is what I'd like to do:

The columns have some relationships - for instance, when the first
column is checked, the 3rd column should also be checked. There
doesn't need to be any cross-checking as it is okay for the user to
override it by manually unchecking the 3rd column.

I am very new at this, and have done a lot of searching of the groups
here, but have not found an answer. I can visualize what needs to be
done: upon checking of the first column's CheckBox, I can add 64 to
the CheckBox number to get the corresponding checkbox in the third
column, then set that value to True. What I am having trouble with is
creating a global event for this, rather than manually coding each
checkbox.

Can someone point me in the right direction?