public IList <Portfolio> GetPortfolios(string cik)
        {
            var db    = new MongoDbOperation(_connectionString, _database);
            var qry   = "{'Cik':'" + cik + "'}";
            var ports = db.Select <Portfolio>(qry).ToList();

            return(ports);
        }
        public void TestRead()
        {
            var db    = new MongoDbOperation("mongodb://localhost:27017", "AiDollar");
            var port  = db.Database.GetCollection <Portfolio>("Portfolio");
            var ports = port.Find("{'Cik':'0001067983'}").ToList();

            var dPorts = db.Select <Portfolio>("{'Cik':'0001067983'}");
        }