Retreiving AlternateView's of email

public string ExtractAlternateView()
    {
        var message = new System.Net.Mail.MailMessage();
        message.Body = "This is the TEXT version";

        //Add textBody as an AlternateView
        message.AlternateViews.Add(
            System.Net.Mail.AlternateView.CreateAlternateViewFromString(
                "This is the HTML version",
                new System.Net.Mime.ContentType("text/html")
            )
        );

        var dataStream = message.AlternateViews[0].ContentStream;
        byte[] byteBuffer = new byte[dataStream.Length];
        return System.Text.Encoding.ASCII.GetString(byteBuffer, 0, dataStream.Read(byteBuffer, 0, byteBuffer.Length));
    }

var dataStream = view.ContentStream;
byte[] byteBuffer = new byte[dataStream.Length];
var encoding = Encoding.GetEncoding(view.ContentType.CharSet);
string body = encoding.GetString(byteBuffer, 0,
    dataStream.Read(byteBuffer, 0, byteBuffer.Length));