Data validation question

Pauljj

Well-known Member
Joined
Mar 28, 2004
Messages
2,047
I need to a cell to contain either 3 numbers or 3 numbers and a letter only.

I.E 308, 305E

In that way, if a letter appeared in any other position this would be wrong or of there was more then 4 characters and less then 3 or 2 numbers and a letter...this would be wrong.

How could I stop this ?
 

Excel Facts

How to create a cell-sized chart?
Tiny charts, called Sparklines, were added to Excel 2010. Look for Sparklines on the Insert tab.
Let's say you want to do this on cell A1

Goto Cell A1

Choose Data Validation

Validation Criteria is "Custom"

Try this in the Formula and see if it works:

=IF(LEN(A1)=3,ISNUMBER(A1),IF(LEN(A1)=4,AND(ISERROR(VALUE(A1)),NOT(ISERROR(VALUE(LEFT(A1,3))))),FALSE))

Not pretty, but should do the job

:)
 
Upvote 0
I haven't got a clue how that works.....but it does ?

Thank you ever so much


Paul
 
Upvote 0

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