Problem with regular expression

[Morten]

Hi!

I'm trying to validate a password by means of a regular expression. I've
found the following: ^(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{4,8}$ which should
guarantee that the password length is between 4 and 8 characters and that it
contains at least 1 lower case letter, 1 upper case letter and 1 numeric
digit. The problem is that no matter what I key in I'm told that it doesn't
match the criteria I've implemented.

Just to make sure that I can use some regular expression I've tried this:
^.{4,8}$ This just ensures that the length is between 4 and 8 characters and
it works OK.

Can somebody help me with this please?

Thanks in advance

Morten

 

[Louis Marascio]

Morten,

I think your RegEx is right. How are you validating this? Grab
Expresso from http://www.codeproject.com/dotnet/Expresso.asp. It will
let you test your expression w/ test input, etc. I plugged your
expression in and then hit it with some test input and it appears to
work.

Louis

 

[Morten]

Hi!

I'm using a RegularExpressionValidator control in Visual Studio .Net and
that doesn't give me the desired result.

I'll try the tool that you suggest.

Morten

Morten,

I think your RegEx is right. How are you validating this? Grab
Expresso from http://www.codeproject.com/dotnet/Expresso.asp. It will
let you test your expression w/ test input, etc. I plugged your
expression in and then hit it with some test input and it appears to
work.

Louis
--
Louis Marascio
louis at no spam dot louismarascio dot com

Hi!

I'm trying to validate a password by means of a regular expression. I've
found the following: ^(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{4,8}$ which should
guarantee that the password length is between 4 and 8 characters and that it
contains at least 1 lower case letter, 1 upper case letter and 1 numeric
digit. The problem is that no matter what I key in I'm told that it doesn't
match the criteria I've implemented.

Just to make sure that I can use some regular expression I've tried this:
^.{4,8}$ This just ensures that the length is between 4 and 8 characters and
it works OK.

Can somebody help me with this please?

Thanks in advance

Morten

 

[Morten]

Hi again!

I get the expected result with Expresso but I can't get it to work with the
RegularExpressionValidator control in Visual Studio.

Has anybody got a clue why this might happen? Can anybody else make this
work in VS .Net 2003?

Morten

Hi!

I'm using a RegularExpressionValidator control in Visual Studio .Net and
that doesn't give me the desired result.

I'll try the tool that you suggest.

Morten

Morten,

I think your RegEx is right. How are you validating this? Grab
Expresso from http://www.codeproject.com/dotnet/Expresso.asp. It will
let you test your expression w/ test input, etc. I plugged your
expression in and then hit it with some test input and it appears to
work.

Louis
--
Louis Marascio
louis at no spam dot louismarascio dot com

Hi!

I'm trying to validate a password by means of a regular expression. I've
found the following: ^(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{4,8}$ which should
guarantee that the password length is between 4 and 8 characters and that it
contains at least 1 lower case letter, 1 upper case letter and 1 numeric
digit. The problem is that no matter what I key in I'm told that it doesn't
match the criteria I've implemented.

Just to make sure that I can use some regular expression I've tried this:
^.{4,8}$ This just ensures that the length is between 4 and 8 characters and
it works OK.

Can somebody help me with this please?

Thanks in advance

Morten