“/”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,出现未经处理的异常。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 22:         {
行 23:             Product = Product_bll.Query_Product(Convert.ToInt32(Request.QueryString["id"]));
行 24:             Product1 = Product_bll.Query_Product(" and  language='China' and typeid=" + Product.typeid + " and id>" + Convert.ToInt32(Request.QueryString["id"]), " order by  grade asc,id   ");
行 25:             Product2 = Product_bll.Query_Product(" and  language='China' and typeid=" + Product.typeid + " and id<" + Convert.ToInt32(Request.QueryString["id"]), " order by  grade asc,id  desc ");
行 26:             ShuXing_List1 = ShuXing_bll.Query_ShuXing(" * ", "and  language='China' and typeid=" + Product.id, "order by  grade asc,id  desc");

源文件: c:\ywwz\CaseFrame.aspx.cs    行: 24

堆栈跟踪:


[NullReferenceException: 未将对象引用设置到对象的实例。]
   CaseFrame.Page_Load(Object sender, EventArgs e) in c:\ywwz\CaseFrame.aspx.cs:24
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +52
   System.Web.UI.Control.OnLoad(EventArgs e) +97
   System.Web.UI.Control.LoadRecursive() +61
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +693


版本信息: Microsoft .NET Framework 版本:4.0.30319; ASP.NET 版本:4.8.4494.0