Regular Expression for data annotations

Question

How do I write a regular expression for the following

at least 6 characters
at least 1 uppercase
at least 1 lowercase
at least 1 number
at least 1 special character ("#¤%&/( æøå etc.)

I tried the below regex but it isn't working.

^(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[#+-?$!]).{8,}$

In SO you need to prove that you've tried something before asking a question — Matías Fidemraizer, Sep 17 '14 at 14:31
Tried this ^(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[#+-?$!]).{8,}$ but this does not work with \. — Millerbean, Sep 17 '14 at 14:32
For future - you should *update your post* in addition to commenting. Note that your should be adding actual code (in this case C#) that compiles and shows what you've tried in minimal sample. — Alexei Levenkov, Sep 17 '14 at 14:36

Avinash Raj · Accepted Answer · 2014-09-17T14:51:44.810

2

Below regex would satisfy all of your conditions,

^(?=.{6,})(?=.*?[A-Z])(?=.*?[a-z])(?=.*?\d)(?=.*?\W).*$

DEMO

(?=.{6,})          at least 6 characters
(?=.*?[A-Z])       at least 1 uppercase
(?=.*?[a-z])       at least 1 lowercase
(?=.*?\d)          at least 1 number
(?=.*?\W)          at least 1 non-word character

edited Sep 17 '14 at 14:51

answered Sep 17 '14 at 14:34

Avinash Raj

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Regular Expression for data annotations

1 Answers1