public ResponsePM GetSymbolData(string symbol)
        {
            External_DatabaseEntities db = new External_DatabaseEntities();
            var    list   = db.StockDatas.ToList();
            var    price1 = list.Where(s => s.Symbol == symbol).Select(s => s.MarketPrice);
            int    price  = price1.First();
            var    name1  = list.Where(s => s.Symbol == symbol).Select(s => s.Name);
            string name   = name1.First();

            ResponsePM obj = new ResponsePM();

            obj.Name   = name;
            obj.Price  = price;
            obj.Symbol = symbol;

            return(obj);
        }
        public List <ResponsePM> GetWholeData()
        {
            External_DatabaseEntities dbObj = new External_DatabaseEntities();
            var stockList             = dbObj.StockDatas.ToList();
            List <ResponsePM> listObj = new List <ResponsePM>();

            foreach (var stock in stockList)
            {
                ResponsePM responseObj = new ResponsePM();
                responseObj.Symbol = stock.Symbol;
                responseObj.Name   = stock.Name;
                responseObj.Price  = stock.MarketPrice;
                listObj.Add(responseObj);
            }


            return(listObj);
        }