RegularExpressionValidator and non-blank email address

So I have a register page for my app, I need to require an email address. Used the RegularExpressionValidator, choose a supplied regex for email which looks like

Code:

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\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*

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That seems to work just fine, but it does not take into account when the email address is blank.

Is there a way to modify the regex to not allow blank? Or would I need to use a RequiredFieldValidator on top of the RegularExpressionValidator?

Thanks,
Mike

You can use a Required validator also. You can have multiple validator controls for a control.