“/”应用程序中的服务器错误。

未将对象引用设置到对象的实例。

说明: 执行当前 Web 请求期间,出现未处理的异常。请检查堆栈跟踪信息,以了解有关该错误以及代码中导致错误的出处的详细信息。

异常详细信息: System.NullReferenceException: 未将对象引用设置到对象的实例。

源错误:


行 1828:                                    string sql_two = "select * from " + param[2] + " where fatherId=" + dr_["id"].ToString() + " and typestate>0 order by sortnum ,id ";
行 1829:                                    OleDbDataReader dr_two = con.DrSelect(sql_two, null);
行 1830:                                    while (dr_two.Read())
行 1831:                                    {
行 1832:                                        string nb_str = columntwo;

源文件: d:\webset\ahclear\App_Code\jss_fc\JSSMethods.cs    行: 1830

堆栈跟踪:


[NullReferenceException: 未将对象引用设置到对象的实例。]
   jss_fc.JSSMethods.mt_head_ny(String tagename, OperateDB con, String id, String[] param) in d:\webset\ahclear\App_Code\jss_fc\JSSMethods.cs:1830
   jss_fc.JSSMethods.TAGES_SINGLE(String tagename, OperateDB con, String[] param, String[] idsparam) in d:\webset\ahclear\App_Code\jss_fc\JSSMethods.cs:37
   info.Page_Load(Object sender, EventArgs e) in d:\webset\ahclear\info.aspx.cs:40
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
   System.Web.UI.Control.OnLoad(EventArgs e) +99
   System.Web.UI.Control.LoadRecursive() +50
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627


版本信息: Microsoft .NET Framework 版本:2.0.50727.8966; ASP.NET 版本:2.0.50727.8962