Regular Expression : User Name

I'm trying to create a regular expression for a user name.

Her开发者_StackOverflowe are the rules 1) At least 8 characters and at most 50 characters 2) Allows A-Z, a-z, numbers, and any other character except / character.

Thank you, -Tesh

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Use

\A[^/]{8,50}\Z

or, in C#:

Regex regexObj = new Regex(@"\A[^/]{8,50}\Z");

The start-and-end-of-string anchors \A and \Z are necessary because otherwise regexObj.IsMatch() would return True even if only a part of the regex would match, and you want the string to match in its entirety.

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This should work for you...

[^/]{8,50}

If you want to be more specific about which characters you want to include then you can do something like this instead...

[A-Za-z0-9,\.!@#\$%\^&\*\(\)\-_\+\=]{8,50}