' Reflection.BindingFlags.NonPublic - nicht öffentliche Felder suchen
      ' Reflection.BindingFlags.Public - öffentliche Felder suchen
      ' Reflection.BindingFlags.GetField - Felder suchen
      ' Reflection.BindingFlags.Instance - Instanzmember einschließen
 
      For Each fi As System.Reflection.FieldInfo In GetType(Form1).GetFields( _
        Reflection.BindingFlags.NonPublic Or Reflection.BindingFlags.Public Or _
        Reflection.BindingFlags.GetField Or Reflection.BindingFlags.Instance)
         If fi.FieldType Is GetType(String) Then
            Debug.WriteLine(fi.Name)
         End If
      Next