Yep, use an array and loop through the values:
Code:
Dim checkvalues(29) As String
checkvalues(0) = "orcheck"
'etc
Dim result As Boolean = False
For Each value As String In checkvalues
     If e.Node.Text = value Then
          result = True
          Exit For
     End If
Next
You could also make a String variable with all allowed text values and use the "String.Contains" function to check if e.Text is allowed. I like the array way better though.