We help IT Professionals succeed at work.
Get Started

Need some Regex Help

ericlockshine
on
134 Views
Last Modified: 2016-08-16
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!
Comment
Watch Question
IT Consultant
CERTIFIED EXPERT
Commented:
This problem has been solved!
Unlock 1 Answer and 3 Comments.
See Answer
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE