If you apply the list differently then it will not allow small case one. Use comma separated values in Validation List Source.

On Friday, January 08, 2010 12:55 PM Lakeville wrote:

I want to ensure that the data in a cell is either a capitalized Y or a
capitalized N. I understand how to do the data validation of a list with Y &
N. And I understand how to enforce capitalization: =EXACT(A1,UPPER(A1)).
However, I do not understand how to enforce both for the same cell.


On Friday, January 08, 2010 1:14 PM Basil wrote:

You could just select the 'List' option and type Y,N in the criteria. It is
case sensitive.



"Lakeville" wrote:


On Friday, January 08, 2010 1:15 PM ryguy7272 wrote:

Data Valivation List Source = =$B$1:$B$2
In Cell B1, put Y and in Cell B2, put N


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"Lakeville" wrote:


On Friday, January 08, 2010 1:15 PM T. Valko wrote:

Try this...

=FIND(A1,"~YN")1

Or, the robust version:

=FIND(A1,UPPER("~YN"))1

--
Biff
Microsoft Excel MVP


On Friday, January 08, 2010 1:24 PM Lakeville wrote:

I thought it was case sensitive, but it is not working that way for me.

"Basil" wrote:
You could just select the 'List' option and type Y,N in the criteria. It is
case sensitive.


On Friday, January 08, 2010 1:30 PM Lakeville wrote:

This is what I already have. If the user uses the drop down to select Y or N,
then it works properly. However, a user can manually enter lowercase y or n,
and I want to avoid that.

"ryguy7272" wrote:


On Friday, January 08, 2010 2:14 PM Basil wrote:

Strange. It would only stop them from entering the text once they navigate
away from the cell, and only if 'Show error alert after invalid data is
entered' is checked in the Error Alert tab of the Data Validation menu form.

Biff's solution should work too.

"Lakeville" wrote:


On Friday, January 08, 2010 11:46 PM Teethless mama wrote:

your formula fail. If user enter both YN in a cell


Try this one:

=AND(EXACT(A1,UPPER(A1)),OR(A1="Y",A1="N"))





"T. Valko" wrote:


On Saturday, January 09, 2010 12:27 AM T. Valko wrote:

Good catch. I did not test for that possibility.

Try this one:

=(LEN(A1)=1)*(FIND(A1,UPPER("YN")))

--
Biff
Microsoft Excel MVP