data validation over 2 columns?
Hi all,
I'm trying to setup a spreadsheet that will prevent a user from entering duplicate data over two columns.
So, :
A B
Smith John
Smith Jane
Smith John
I would like excel to prevent the third entry above.
Is this possible?
TIA,
Jim
Keys to the Problem data validation over 2 columns?
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Hi,
Sorry, it should be in Data > Validation > Allow > Custom
This particular error can easily be resolved with a few simple steps. However, if you are not confident in your ability to use the methods below or they do not fully remove the issue on your computer, you may want to seek the assistance of a qualified repair technician who is well versed in fixing data validation over 2 columns?.
- Back-up the Registry of your operating system.
- Find the Registry Key: [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\OSUpgrade]
- Note: this Registry Key should already exist, if it does not exist, create it.
- Create a brand new DWORD Value that is named AllowOsUpdate
- Set the Value to 0x00000001.
- Close and reopen your Control Panel.
- Restart the Microsoft Windows.
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