public static baseDS.stockExchangeRow GetStockExchange(string stockCode) { baseDS.stockCodeRow stockRow = AppLibs.FindAndCache_StockCode(stockCode); if (stockRow == null) { return(null); } baseDS.stockExchangeRow stockExchangeRow = AppLibs.FindAndCache_StockExchange(stockRow.stockExchange); return(stockExchangeRow); }