All articles with 'custom data validation' Tag

Avoid Hiring Boo-boos with Excel – COUNTIFS for the win [video]

Published on Apr 26, 2017 in Excel Howtos, Learn Excel
Avoid Hiring Boo-boos with Excel – COUNTIFS for the win [video]

Imagine you are head of human resources at Casual Contracting Co. Every month you hire a lot of temporary staff who spend 1-4 months with CCC before leaving. Sometimes you hire the same people again. Of late, you have noticed a strange process gap. You are paying same person two (or more) salaries.

This is because you are hiring a person for new temp role even before their current one ended. See above picture.

So how to avoid making such hiring boo-boos.

Simple, using Excel of course.

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CP053: Excel Data Validation for Dummies

Published on Mar 10, 2016 in Chandoo.org Podcast Sessions
CP053: Excel Data Validation for Dummies

In the 53rd session of Chandoo.org podcast, let’s talk about data validation.

What is in this session?

In this podcast,

  • What is data validation
  • How Excel DV compares with database & software DV?
  • Types of data validation rules
  • List & custom rules explained
  • Input & error messages
  • Alternatives to data validation
  • Enhancing data validation
  • Removing data validation rules
  • Homework problem for you
  • Resources & show notes
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How to Get “Either-Or” Condition in Data Validation?

Published on May 4, 2010 in Learn Excel
How to Get “Either-Or” Condition in Data Validation?

In a recent consulting assignment I had a tricky data validation problem. The customer wanted to have an either-or condition in the data validation, like this: My initial reaction to this requirement was “hmm… that is not possible“. But before shooting the email back to client, I got curious and checked if excel data validation […]

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Prevent Duplicate Data Entry using Cell Validations

Published on Oct 26, 2009 in Excel Howtos
Prevent Duplicate Data Entry using Cell Validations

We all know that data validation is a very useful feature in Excel. You can use data validation to create a drop-down list in a cell and limit the values user can enter. But, do you know that you can use data validation in a multitude of ways to prevent users from entering wrong data?

Here is a practical application: Prevent users from entering duplicate values in a range of cells.

For eg. you are making an invoice. Wouldn’t it be cool if Excel prompted you when you enter a duplicate line item so that increase the item quantity instead of repeating it.

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