Welcome toExcel.Tips.Net
Tips.Net Home
ExcelTips Home
Ask an Excel Question
Make a Comment
ExcelTips FAQ
ExcelTips Premium
Beauty Tips
Car Tips
Cleaning Tips
College Tips
Cooking Tips
Excel2007 Tips
ExcelTips
Family Tips
Gardening Tips
Health Tips
Home Tips
Money Tips
Organizing Tips
Pest Tips
Pet Tips
Wedding Tips
Word2007 Tips
WordTips
Advertise on the
ExcelTips Site
Assigning a Macro to a Keyboard Combination
Hiding Rows Based on a Cell Value
When you are entering information in a worksheet, you may want to ensure that the data being entered is actually unique for a particular column. For instance, if you are entering a series of invoice numbers in column D of a worksheet, you may want to ensure that you don't enter the same invoice number twice.
There are a couple of ways that you can approach such a problem. If you are always entering your new information at the bottom of a column, you can use Excel's data validation feature to make sure that whatever you are entering in the current cell does not match anything higher up in the column. Simply follow these steps:
=MATCH(D1,$D:$D,0)=ROW(D1)
If you may be entering data anyplace within column D, and you want to know if you are entering a value that is elsewhere in the column (above or below the current cell), then you can follow the above steps, but use this formula in step 4:
=COUNTIF($D:$D,D1)<2
ExcelTips is your source for cost-effective Microsoft Excel training. This tip (2650) applies to Microsoft Excel versions: 97 2000 2002 2003 2007
Got the Time? Understanding the ins and outs of working with times and dates can be confusing. Remove the confusion--ExcelTips: Times and Dates is an invaluable resource for learning how best to work with times and dates.