ASP.NET VB Server-Side SSN Validation Using Regular Expressions

Function IsValidSSN(ByRef Value As String) As Boolean
If String.IsNullOrEmpty(Value) Then
Return False
End If

Value = Value.Trim

If InStr(strValue, “-”) = 0 Then
Return Regex.IsMatch(Value, “^\d{9}$”)
Else
Return Regex.IsMatch(Value, “^\d{3}-\d{2}-\d{4}$”)
End If

End Function

Tags: ASP.NET, asp.net vb, regular expression, validation

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