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Help with reg Exp for web.config

Posted on 2014-02-05
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Last Modified: 2014-02-06
Hi there

Hope you can help me out

In the web.config I have to add a Property called

PasswordStrengthRegularExpression

the RegExp must be

English uppercase characters (A - Z)
English lowercase characters (a - z)
Base 10 digits (0 - 9)

... and you MUST have 1 of each item i.e.

1 UpperCase char
1 LowerCare char
1 number between 0 - 9

Can someone please help me with the regexp

thanks
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Question by:mousemat24
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4 Comments
 
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Expert Comment

by:käµfm³d 👽
ID: 39836362
This should do it:

^(?=[^A-Z]+[A-Z])(?=[^a-z]+[a-z])(?=[^0-9]+[0-9])[A-Za-z0-9]+$

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Author Comment

by:mousemat24
ID: 39838524
Hi

I went to this site, added your regex to it

reg

and entered the following text, that "should" of worked, but did not

BrickWall08
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LVL 75

Accepted Solution

by:
käµfm³d   👽 earned 2000 total points
ID: 39838795
What a difference a single character can make!!  I used the wrong quantifier:

^(?=[^A-Z]*[A-Z])(?=[^a-z]*[a-z])(?=[^0-9]*[0-9])[A-Za-z0-9]+$

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Author Comment

by:mousemat24
ID: 39838972
that worked, thank you so much for your help!
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