访问页面出现异常具体信息如下:

System.NullReferenceException: 未将对象引用设置到对象的实例。 在 WlStock.DAL.STK_BASICINFO_DAL.GetStockNameByTRADINGCODE(String TRADINGCODE) 位置 I:\SVN\万隆网Web\Dev\Code\WlStockWeb\WlStock\WlStockWeb210518\WlStock.DAL\STK_BASICINFO_DAL.cs:行号 21 在 WlStock.BLL.WLGA_SS.STK_BASICINFO_BLL.GetStockNameByTRADINGCODE(String TRADINGCODE) 位置 I:\SVN\万隆网Web\Dev\Code\WlStockWeb\WlStock\WlStockWeb210518\WlStock.BLL\WLGA_SS\STK_BASICINFO_BLL.cs:行号 18
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