未将对象引用设置到对象的实例。

“/”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 7:  <asp:Content ContentPlaceHolderID="Title" runat="server">
行 8:      <% var model = YD.BLL.Ceeia.ChannelBLL.Instance().GetModel(Convert.ToInt32(Request.QueryString["classId"])); %>
行 9:      <%=model.Title%>
行 10: </asp:Content>
行 11: <asp:Content ID="Content1" ContentPlaceHolderID="HeadContent" runat="server">

源文件: c:\webroot\ceeia\News_List.aspx    行: 9

堆栈跟踪:


[NullReferenceException: 未将对象引用设置到对象的实例。]
   ASP.news_list_aspx.__Render__control2(HtmlTextWriter __w, Control parameterContainer) in c:\webroot\ceeia\News_List.aspx:9
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +114
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +239
   System.Web.UI.HtmlControls.HtmlTitle.Render(HtmlTextWriter writer) +110
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +239
   System.Web.UI.HtmlControls.HtmlHead.RenderChildren(HtmlTextWriter writer) +22
   System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer) +41
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +239
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +239
   System.Web.UI.Page.Render(HtmlTextWriter writer) +37
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +4239


版本信息: Microsoft .NET Framework 版本:2.0.50727.8669; ASP.NET 版本:2.0.50727.6427