title: How to get encoding when I read a .csv File?
body: <p>As title, the following code...</p>
  
  <pre><code>System.IO.FileInfo _fInfo;
  OpenFileDialog openDlg = new OpenFileDialog();
  openDlg.Filter = "Csv Files (.csv)|*.csv";
  openDlg.FilterIndex = 1;
  openDlg.Multiselect = false;
  bool? userClickedOK = openDlg.ShowDialog();
  
  if (userClickedOK == true)
  {
      _fInfo = openDlg.File;
  }
  Stream fileStream = _fInfo.OpenRead();
  using (System.IO.StreamReader reader = new StreamReader(fileStream))
  {
      int lineNo = 1;
      while (!reader.EndOfStream)
      {
         reader.ReadLine();
      }
  }
  </code></pre>
  
  <p>Is any way to find "_fInfo" current encoding?
  PS: I used silverlight console(silverlight 2.0).</p>