regular expression allowing only english alphanumeric and "-" [duplicate]

Question

I need a regular expression that allows english alphabets and numbers and "-" and not allow every thing else. but recently I found out that my regular expression not stopping french language alphabets and numbers

My regular expression is as follow,

@"[^\w\d-]";

How can I change the above regular expression so only english alphabets, numbers and "-" can be allowed only?

Try this A-Za-z And I think you need the - as a - to be first — paparazzo
– paparazzo, Commented Dec 22, 2014 at 12:59

Avinash Raj · Accepted Answer · 2014-12-22 12:54:43Z

How can I change the above regular expression so only english alphabets, numbers and "-" can be allowed only?

@"^[A-Za-z0-9-]+$"

^ asserts that we are at the start. $ Asserts that we are at the end. + repeats the previous token one or more times.

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