public override void Write(BinaryWriter writer, object obj)
{
News news = obj as News;
writer.Write(news.DateTime.Ticks);
writer.Write(news.ProviderId);
writer.Write(news.InstrumentId);
writer.Write(news.Urgency);
writer.Write(news.Url);
writer.Write(news.Headline);
writer.Write(news.Text);
}
}