Parsing a string, removing any NON alphanumeric characters usingregex

[DotNetNewbie]

Hi,

I want to parse a string, ONLY allowing alphanumeric characters and
also the underscore '_' and dash '-' characters.

Anything else in the string should be removed.

I think my regex is looking like:

^([\w\d_-])*$


Now if I have this code:

string username = "mrcsharpis_so_cool!!!";

How can I strip all the characters that I dont' want?

 

[Arne Vajhøj]

I want to parse a string, ONLY allowing alphanumeric characters and
also the underscore '_' and dash '-' characters.

Anything else in the string should be removed.

I think my regex is looking like:

^([\w\d_-])*$

^[\w-]*$

should do - \w includes digits and underscore.

Now if I have this code:

string username = "mrcsharpis_so_cool!!!";

How can I strip all the characters that I dont' want?

Try:

Regex.Replace(username, @"[^\w-]+", "")

Arne

 

[DotNetNewbie]

I want to parse a string, ONLY allowing alphanumeric characters and
also the underscore '_' and dash '-' characters.

Anything else in the string should be removed.

I think my regex is looking like:

^([\w\d_-])*$

^[\w-]*$

should do - \w includes digits and underscore.

Now if I have this code:

string username = "mrcsharpis_so_cool!!!";

How can I strip all the characters that I dont' want?

Try:

Regex.Replace(username, @"[^\w-]+", "")

Arne

Replace doesn't take only 2 arguements, that doesn't work?

 

[Arne Vajhøj]

I want to parse a string, ONLY allowing alphanumeric characters and
also the underscore '_' and dash '-' characters.
Anything else in the string should be removed.
I think my regex is looking like:
^([\w\d_-])*$

^[\w-]*$

should do - \w includes digits and underscore.

Now if I have this code:
string username = "mrcsharpis_so_cool!!!";
How can I strip all the characters that I dont' want?

Try:

Regex.Replace(username, @"[^\w-]+", "")

Replace doesn't take only 2 arguements, that doesn't work?

There are 3 arguments in the call I suggest.

And Regex.Replace does have such a method:

http://msdn2.microsoft.com/en-us/library/e7f5w83z.aspx

Arne