Ok, since excel school 3rd batch is going to open on 15th, I wasnt going to write anything today. I have slept just 4 hours last night, blame it on work (and that funny video on youtube). But I found 30 minutes free time, so here you go, a quick but delicious tip on making your data validation dynamic.
Dynamic Data Validation?!? What in the name of slice bread and peanut butter is that?
We all know that you can tell Excel to limit the input values in a cell to just a list of possible values using data validation (Here is a tutorial).
Let us say, you have set up a nice little data validation list to let your users select one of the several products listed. Like shown to the right.
But there is a problem, the list of products doesnt change whenever we add or remove products.
This is where the dynamic data validation thingie comes in to picture. It same as regular data validation, but with the ability to change input list whenever you have new data. See this short demo to understand:

So, how to setup a dynamic data validation list?
if you are running Excel 2007 or above:
- Select your list of products (or invoices or cats) and make it in to a table. (here is a helpful tutorial on excel tables).

- Now, create a new named range and point it to the table, like this:

- Finally, give the named range as input list in data validation.

- That simple!
if you are running Excel 2003 or earlier:
You are in for a lot of circus now. But be patient and take a sip of coffee. Then,
- Make a dynamic range from your list using OFFSET formula, like this:

- Now, use the range name as input list in data validation.
- Pray to IT infrastructure gods that you should be given Excel 2010, really soon.
Download Example Workbook – Dynamic Data Validation in Excel
Go ahead and download example workbook and understand this concept better. Say goodbye to invalid data!
More resources on data validation & magic:
Some kicks ass stuff to help you do magic in excel thru data validation:
- Excel OFFSET formula tutorial
- Set up data validation in excel
- Advanced data validation tricks
- Excel tables – 10 reasons why you should use them
- …. more data validation tips & tricks
PS: If you like this trick, you are going to enjoy my excel school program. You should sign up, like today.














17 Responses to “Custom Number Formats – Colors”
You are right, Chandoo. I was playing with the colour numbers last week and some of them don't appear different from each other. Others are totally different from yours.
@Duncan
Each version of Excel, post 2003, renders colors slightly differently
Different language versions may also have different default color palettes
Hello in french
excel 2010
colo1 = couleur1 = black
[couleur1]; [couleur2]; etc..
@Hui, thank you very much again for this great post.
However - under Excel 2007, Hungarian version your solution does not work with color names. I've tried both English and Hungarian names, but drops an error message "not valid formats"
Do you have any idea how to solve this issue?
thanks in advance
@Andras
Without a Hungarian version of Excel 2003 I don't think I can assist
Have you tried using the colour numbers? I couldn't get the names to work (despite using an english version of excel). but it did work with the numbers though. I left out the "u" and was easily able to produce burgundy using [color9]
Here a possible solution: find an English version of Excel, write there the formats using English names, then open the file in the Hungarian version and see the translation.
In Excel 2007 I can't get the colour names to work e.g Sea Green but the numbers do e.g color3 - colour3 does not work so I must bow to the country that has stolen my language (ha ha!)
Hey chandoo, nice Tip!
Wouldn't be easier just apply some conditional formatting for negative numbers and another for positive numbers? Or there's some cases that you can't do that?
Unfortunately the TEXT function doesn't color the cell as number formatting does.
Hi Hui,
Great post Sir, love the new way of formatting with color numbers.
I am using 2007, and it leads me to the last color number 56.
Thanks Hui.
[…] explains how to set up custom number formats with a wide array of […]
Thanks Hui - works a treat!
Thank you, very helpful.
Trying to figure out if it is possible to apply color only to a part of the cell?
E.g. I have a value formatted as Accounting with a currency symbol.
Those I find somewhat distracting though necessary. If I could make them less obtrusive by coloring them gray while the number would stay black, that would be great. Tried tinkering with the format string, but didn't get the desired result. Single color for complete cell value works, but coloring just part of it could not be achieved. Maybe somebody managed that?
Exactly what I was looking for - thank you!
colour in the Australian doesn't work - we have to go American and no problem.
I always thought is was 56 colours notice you have 57. Cool.
thanks
Analir Pisani
Customised Microsoft Office Training Specialist
Sydney - Australia
http://www.azsolutions.com.au
Thank You!