troubleshooting Question

Need some Regex Help

Avatar of ericlockshine
ericlockshineFlag for United States of America asked on
Regular ExpressionsC#
3 Comments1 Solution136 ViewsLast Modified:
I need help generating a Regex to test the following (I admit I am no good at this):
Up to 5 digits, and an optional 6th Alpha Only character.  So the pattern would be:
0
01
012
0123
01234
01234A

I started with /^\d{1,5}[a-zA-Z]?/ but this allows a letter in the middle, not just as the 6th character.
This will be tested using the System.Text.RegularExpressions.Regex .IsMatch method in a C# class as the characters are being typed (think a specialized input mask).

Thanks for any help!
ASKER CERTIFIED SOLUTION
Dan Craciun
IT Consultant

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