[RuntimeBinderException: 鏃犳硶瀵 null 寮曠敤鎵ц杩愯鏃剁粦瀹歖
   CallSite.Target(Closure , CallSite , Object ) +115
   System.Dynamic.UpdateDelegates.UpdateAndExecute1(CallSite site, T0 arg0) +257
   CallSite.Target(Closure , CallSite , Object ) +240
   ASP.news_aspx.__Render__control1(HtmlTextWriter __w, Control parameterContainer) in d:\jiningdongda\news.aspx:25
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +270
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +14
   System.Web.UI.Page.Render(HtmlTextWriter writer) +30
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +67
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +101
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +27
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1342