How to use data validation to prevent blank cells left in Excel column?
In some cases, you do not allow the blank cells left in a column which means that must enter something in cells of a column. In this article, I will introduce the Data Validation function to handle this job in Excel.
Prevent blank cells left in a column by Data Validation
Prevent duplicate data in a column by Prevent Duplicate
Prevent blank cells left in a column by Data Validation
To prevent blank cells left in a column, you just need to use a simple formula in Data Validation function.
1. Select the column you want to prevent blank cells left, click Data > Data Validation.
2. Under Settings tab, select Custom from Allow drop-down list, then type this formula =COUNTIF($F$1:$F1,"")=0 into Formula textbox.
F1 is the first cell in the selected column.
3. Click OK. From now, if you left a blank cell and jump to next cell to enter value, a warning box will pop out to stop you.
Prevent duplicate data in a column by Prevent Duplicate
If you want to prevent duplicate data entry in a column, you can try Kutools for Excel’s Prevent Duplicate utility.
| Kutools for Excel, with more than 300 handy functions, makes your jobs more easier. |
After installing Kutools for Excel, please do as below:（Free Download Kutools for Excel Now!)
Select the column you want to prevent duplicate entry, click Kutools > Prevent Typing > Prevent Duplicate.
Then click Yes > OK to close the reminders.
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From now on, it will pop out a warning to stop duplicate entering.
Prevet duplicate entering
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