Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Checking & Validating Excel Formulas

Posted on 2012-03-15
9
Medium Priority
?
262 Views
Last Modified: 2012-03-15
Hello Experts,

I need to establish some validation and checking rules for formulas in an Excel sheet.

Specifically, I need to check that the row number in a given formula is the same as the actual row of the cell containing the formula, and be able to raise a flag if not.

So what I really need is a way (or perhaps a function) for reading the row refered to in the formula

For example, applying this function on below formula will give me 16

=SUM(Sheet2!H16:J16)

Assuming the function is called GetRowNumber() and the formula is in Cell B16, I need to place a checking formula on the same row like this:

=If(GetRowNumber(B16) <> ActiveCell.Row(), "Mismatch Row in formula", "Formula is OK")

The above is my suggested way for validating my formulas, please feel free to offer a better approach or best practice (if you will)

Thank you,
Hani
0
Comment
Question by:Mehawitchi
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 5
  • 4
9 Comments
 
LVL 24

Expert Comment

by:StephenJR
ID: 37724323
Do your formulas vary? Or are all they of the form SUM(A1:B1)?
0
 

Author Comment

by:Mehawitchi
ID: 37724415
Thank you Stephen for your query.

Below are 3 samples of the actual formulas:
=SUM(Corporate:Panorama!D57)
=SUM(Corporate:Panorama!E57)
=SUM(Corporate:Panorama!F65)

As you can see, only the column and row references vary, but the part "SUM(Corporate:Panorama!" is fixed.

Hope this helps.

Thanks again,
Hani
0
 
LVL 24

Expert Comment

by:StephenJR
ID: 37724442
Hani - try this:
Function GetRowNumber(rIn As Range) As String

Dim s As String

s = rIn.Formula

With CreateObject("VBScript.RegExp")
    .Global = True
    .IgnoreCase = False
    .Pattern = "([A-Z]+)(\d+)"
    If CLng(.Execute(s)(0).Submatches(1)) = Application.Caller.Row Then
        GetRowNumber = "OK"
    Else
        GetRowNumber = "Wrong"
    End If
End With

End Function

Open in new window

So you would type =GetRowNumber(B16) in a cell etc.
0
Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

 

Author Comment

by:Mehawitchi
ID: 37724573
Hi Stephen,

I don't think the function is working properly. The result is always "Wrong"  whether or not the formula is right.

I tried executing the "CLng(.Execute(s)(0).Submatches(1))" statement in the debugger's Immediate window but I'm getting a compilers error

Did it work at your end?
0
 
LVL 24

Expert Comment

by:StephenJR
ID: 37724592
Yes worked for me. Can you post a small workbook?
0
 

Author Comment

by:Mehawitchi
ID: 37724638
Please check column "P" in "Total" sheet
Sample-File.xlsm
0
 
LVL 24

Accepted Solution

by:
StephenJR earned 2000 total points
ID: 37724669
Try just changing line 10 to
.Pattern = "(\![A-Z]+)(\d+)"

Open in new window

0
 

Author Closing Comment

by:Mehawitchi
ID: 37724740
Thank you Stephan - It worked perfectly
0
 
LVL 24

Expert Comment

by:StephenJR
ID: 37724747
My pleasure.
0

Featured Post

Concerto Cloud for Software Providers & ISVs

Can Concerto Cloud Services help you focus on evolving your application offerings, while delivering the best cloud experience to your customers? From DevOps to revenue models and customer support, the answer is yes!

Learn how Concerto can help you.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Excel can be a tricky bit of software to get your head around. Whilst you’ll be able to eventually get to grips with the basic understanding of how to get by, there are a few Excel tips that not everybody will even know about let alone know how to d…
After seeing numerous questions for Dynamic Data Validation I notice that most have used Visual Basic to solve the problem. This suggestion is purely formula based and can be used in multiple rows.
This Micro Tutorial will demonstrate how to use a scrolling table in Microsoft Excel using the INDEX function.
This Micro Tutorial will demonstrate how to create pivot charts out of a data set. I also added a drop-down menu which allows to choose from different categories in the data set and the chart will automatically update.

688 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question