-1:System.ArgumentException: 数据读取失败! 在 sqlcommon.command.ExecuteDataTable(String connectionstring, CommandType cmdType, String cmdText, Int32 CommandTimeout, Int32 cacheSecond, SqlParameter[] commandParameters) 在 sqlcommon.command.ExecuteDataTable(String connectionstring, CommandType cmdType, String cmdText, Int32 cacheSecond, SqlParameter[] commandParameters) 在 sqlcommon.command.ExecuteDataTable(String cmdText, Int32 cacheSecond) 在 sqlcommon.command.ExecuteDataTable(String cmdText) 在 EduWeb.cs.db.Get_CompanyProductList(SerListM oPage, Int32 iCurrentPage, Int32 iPageSize, String Params, String& company_ids, Int32& iNumAll, Int32& iNumAllProduct, List`1& listCompany) 在 EduWeb.cs.web.web_City_List_BanNew(String sOnClassBh, String Params, Int32 iCurrentPage)