Thanks Jerry, Paul, and Dave for your answers to my
question. Even better, since I have 3 different solutions
to my problem, I get to learn more! Thanks again.

-----Original Message-----
Sorry, since your question dealt specifically with hidden
cells, I just
assumed you were familiar with writting array formulas to
sum based on
conditions, but didn't know how to test for the
particular condition of
hidden cells. The worksheet cell formula

=SUMPRODUCT(IsVisible(A1:X1)*A1:X1)

uses my IsVisible() function to sum only the cells of
A1:X1 that are not
in hidden columns. When you change the code in IsVisible
() to deal with
rows then you can change the cell formula to sum down a
column instead
of across a row.

In retrospect, a better name for my function would have
been
IsVisibleCol(), and the suggested revision would be
IsVisibleRow(), so
that both could coexist in an installed Add-In.

Jerry

Eva Shanley wrote:

Jerry, thanks for the function. Sorry to bother you on
this again, but I'm pretty dense when it comes to VB.
Using this as is just give me "True" as the result.
What
else do I have to do?


-----Original Message-----
Here it is. The argument can be a single cell or an

entire range (as in

an array formula). Change EntireColumn to EntireRow
for

your application.

Function IsVisible(ByVal Target As Excel.Range) As
Variant
' must be manually recalculated since hidding/unhiding

colums does not

trigger recalc
Dim Results()
ReDim Results(1 To 1, 1 To Target.Columns.Count)
i = 0
For Each c In Target.Columns
i = i + 1
Results(1, i) = Not c.EntireColumn.Hidden
Next c
IsVisible = Results
End Function

Jerry

Jerry W. Lewis wrote:


Not and have it automatically update as you hide or

unhided columns.

Format changes do not trigger any event that could be

used to trigger a

recalculation. I wrote an IsVisible() function, that
I

can post later,

but without such an event, you will either have to

manually recalculate

when you change what is hidden.

If what is hidden will not change, why not just

reference the visible

cells?

Jerry

Eva Shanley wrote:


Is there a way, either programmatically or with a
User

Defined

function, to leave hidden rows out of a sum? A user

here wants to

hide rows in various instances without having to

redefine the sum

range all the time, and does not want them included
in

his total. Any

help as always is appreciated!


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