title: Check if user input is part of the NeutralCultures list
body: <p>I want to check if the user input is part of the NeutralCultures List. So that is not possible to input a value which is not in the list.</p>
  <pre><code>Dim Culture As System.Globalization.CultureInfo
  For Each Culture In System.Globalization.CultureInfo.GetCultures(Globalization.CultureTypes.NeutralCultures)
           cLanguage.ap_ComboAdd(Culture.TwoLetterISOLanguageName &amp; &quot;|&quot; &amp; Culture.DisplayName)
  Next
  </code></pre>
  <p>The input of the user is saved in .language = cLanguage.Text - how can I now check if cLanguage.Text is part of the list?</p>
  <p>Thank all for your help</p>