Comments on: Prevent Duplicate Data Entry using Cell Validations

By: Become an Excel Guru in 31 Days | Pointy Haired Dilbert: Learn Excel Online - Chandoo.org

Thu, 11 Mar 2010 09:55:01 +0000

[...] Day 31: Advanced Data Validation Tricks in Excel – Part 2 [...]

By: Chandoo

Chandoo — Mon, 30 Nov 2009 19:00:28 +0000

@Jair.. sorry for such a delayed reply.. you can upload the files to skydrive and link them here. Or you can email them to me at chandoo.d @ gmail.com and I will upload them somewhere. But it could take forever if you email files to me as I am a bit lazy.

By: Jair

Jair — Fri, 13 Nov 2009 21:08:34 +0000

Hi Chandoo, the proposed solution by JlD is interesting. He created a macro to get values when the matrix is not one dimensional, how on my problem. This fuction for me.
I would like to share you my work, how can I upload?

By: Chandoo

Chandoo — Fri, 13 Nov 2009 08:24:04 +0000

@Jair… my french aint that good. it starts at “merci” and ends at “beau coup”.

Anyhow, you need to merge the large with vlookup to do this. I am not sure if you have solved the problem. Otherwise let me know with details and I can write the formula in comments.

@Chad… I have never used excel mobile, so I have no idea. May be they have not implemented data validations in excel mobile.

Any excel mobile users out there?

By: Chad

Chad — Thu, 12 Nov 2009 18:55:09 +0000

Hello,
I am trying to attempt data validation in Excel Mobile, but the DV tool isnt available. I want to prevent duplicates is all, any advice on acheiving this in Excel Mobile? Thanks..

By: Jair

Jair — Fri, 06 Nov 2009 18:28:45 +0000

Hi, I going to prove, with this solution by JLD http://jldexcelsp.blogspot.com/2008/07/extraer-direccion-de-celda-en-matriz.html

By: Jair

Jair — Fri, 06 Nov 2009 17:11:54 +0000

Hi, I don’t know if I’m using bad the formula or its performance is diferent for my Office version. Large() formula return the value in the cell, in my example 35. The index() formula use a range, row and column. I’m using the large() as number of row, and it is bad because into the range don’t have row 35. This is my perception. What do you think?

By: Chandoo

Chandoo — Sun, 01 Nov 2009 20:40:00 +0000

@Subbu.. you can easily extend the validation to other sheets by pasting the data validations. See the latest article here: http://chandoo.org/wp/2009/10/28/copy-data-validations/

@Jair.. you can use the large() or small() formulas to do this. for eg. =index(A1:A3,large(B1:B3,1)) will get you the name of the person with highest “years”. More help here: http://chandoo.org/excel-formulas/large.html

By: Jair

Jair — Fri, 30 Oct 2009 19:48:59 +0000

Thanks for you attention. I’m trying to get of value continue from a found value. Let me show a example:

Name Years
John 35
Maria 28
Teresa 32

If I search the max years, the result is 35, but I need that result to be John. Do you know how I can do it?

By: subbu

subbu — Tue, 27 Oct 2009 13:18:45 +0000

Thanks for this nice tip, i used to do a find all after filling every new items which was cumbersome.

Do you know a way to extend this validation search to other tabs/sheets ?