Start with something like:

Function CheckIt(v As Variant) As Variant
s = Evaluate(v)
If Application.WorksheetFunction.IsError(v) Then
CheckIt = ""
Else
CheckIt = s
End If
End Function

So if A1 contains 1 and A2 contains 2 then

=CheckIt(A1+A2) will display 3

But if A1 contains =0/0 then

=CheckIt(A1+A2) will display a blank
--
Gary''s Student - gsnu200812


"dhstein" wrote:

I often code cells to check for error - something like
=IF(ISERROR(VBLOOKUP(parms........)),"",VBLOOKUP(p arms.........))
but I'd like to try to write a function like "CheckIt" which I could invoke
as
=CheckIt(VBLOOKUP(parms .........)

Checkit should allow any type of value as input - since the VBLOOKUP can
return text or numeric or anything. It should see if the value is an error
and if it is return a blank string, otherwise return the value of the
vlookup. A couple of questions:

1 ) Can this be done ?
2) Will the function call evaluate the Vlookup before passing the result to
the function ?
3) Can the function accept arguments of any type - that is text or numeric
or whatever?

Any hints or suggestions are appreciated.