How can I check that all numbers in a serial number are numeric

[chuck72352]

I wrote a vi that checks to make sure that a serial number is in the "mmddyy-xxx" format, where xxx can be from 0 to 999. The problem is if I enter something like "012210-A1" it passes. Is there an easy fix to fail anything where xxx is not in the 0 to 999 range?

Thank you

[Dennis_Knutson · Accepted solution]

You could use the Lexical Class function. If the character is a digit between 0 and 9, it returns a class number of 3.

[Lucianogob]

Hello,

Please check the link below:

http://forums.ni.com/ni/board/message?board.id=170&message.id=370717&requireLogin=False

Is this what you need?

Thanks.

Best Regards

[GerdW]

Hi chuck,

you can do it that way:

When the serial number isn't correct you will get an error from the ScanFromString function...