Why does my regex fail to match email?

Question

I have to following code to validate an email address

 var reg = new Regex(@"/^([a-z0-9_\.-]+)@([\da-z\.-]+)\.([a-z\.]{2,6})$/");

 string e1 = "name@host.net";
 string e2 = "namehost.net";

 bool b1 = reg.IsMatch(e1);
 bool b2 = reg.IsMatch(e2);

but both b1 and b2 fail

Answer 1

Remove the slashes at the beginning and end.

var reg = new Regex(@"^([a-z0-9_\.-]+)@([\da-z\.-]+)\.([a-z\.]{2,6})$");

However, that being said, your regex is not a good pattern for matching e-mail addresses. In fact, an accurate pattern is really difficult to make. Google some and you should find better ones.