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Email Regular Expression Validator and Required

In my form, the email address is requried and it must pass validation. I have setup a regular expression validator, but I also need to make it a required field. You can tab through it without filling out anything. How do I make it not only check for valid email, but enforce that they insert one? Do I also need a required field validator as well? Or can this be done within the expression below?

         Dim valExpression As String = "^\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$"
         valEmail.ErrorMessage = "Please enter a valid Email address."
         valEmail.ControlToValidate = "txtEmail"
         valEmail.ValidationExpression = valExpression

Thanks!
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Starr Duskk
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Starr Duskk
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ororioleCommented:
You need to add a required field validator as well. This is a very common pattern. While you could write a custom validator to do both, its quicker and convenient to use 2 validator controls.
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