Object reference not set to an instance of an object

[Shonda]

I am getting an object reference error when trying to display my report. I get this error only after I upgrading to the latest version Q3 2011 (5.3.11.1116).  

With no code changes at all I can down grade to version Q2 2011 SP1 (5.1.11.928) and the report works just fine.

Here is the stack I receive in the Output window while debugging...

*** RenderReport #0 STARTED ***
An error has occurred while rendering the report: System.NullReferenceException: Object reference not set to an instance of an object.
   at Telerik.Reporting.Processing.LayoutEngine.LayoutAnchoredItem(ILayoutItem item, RectangleU rect)
   at Telerik.Reporting.Processing.LayoutEngine.Layout(ILayoutContainer container)
   at Telerik.Reporting.Processing.ReportSectionBase.Measure(MeasureDirection dir, Graphics graphics)
   at Telerik.Reporting.Processing.PageSection.Measure(MeasureDirection dir, Graphics graphics)
   at Telerik.Reporting.Processing.ProcessingElement.MeasureElement(MeasureDirection dir, Graphics graphics)
   at Telerik.Reporting.Processing.Report.MeasureElement(ProcessingElement elementToMeasure)
   at Telerik.Reporting.Paging.InteractiveLayout.PageComposition.GetMaxPageSectionWidth()
   at Telerik.Reporting.Paging.PageCompositionBase.SetCurrentWidthCore()
   at Telerik.Reporting.Paging.PageCompositionBase.set_CurrentPageArea(PageArea value)
   at Telerik.Reporting.Paging.InteractiveLayout.PageComposition.PrepareNewPage()
   at Telerik.Reporting.Paging.InteractiveLayout.PageComposition.NextUsableArea()
   at Telerik.Reporting.Paging.InteractiveLayout.PageComposition.NextVerticalPage()
   at Telerik.Reporting.Paging.InteractiveLayout.PageComposition.PageOverride()
   at Telerik.Reporting.Paging.PagerBase.Page(IPageHandler handler, Report report)
   at Telerik.Reporting.BaseRendering.RenderingExtensionBase.Render(Report report, Hashtable renderingInfo, Hashtable deviceInfo, CreateStream createStreamCallback, EvaluateHeaderFooterExpressions evalHeaderFooterCallback)
*** RenderReport #0 DONE in 00:00:00.0302191 ***


WinViewer> An error has occurred while rendering a report:
The thread 'Rendering' (0x2ee0) has exited with code 0 (0x0).
System.NullReferenceException: Object reference not set to an instance of an object.
   at Telerik.Reporting.Processing.LayoutEngine.LayoutAnchoredItem(ILayoutItem item, RectangleU rect)
   at Telerik.Reporting.Processing.LayoutEngine.Layout(ILayoutContainer container)
   at Telerik.Reporting.Processing.ReportSectionBase.Measure(MeasureDirection dir, Graphics graphics)
   at Telerik.Reporting.Processing.PageSection.Measure(MeasureDirection dir, Graphics graphics)
   at Telerik.Reporting.Processing.ProcessingElement.MeasureElement(MeasureDirection dir, Graphics graphics)
   at Telerik.Reporting.Processing.Report.MeasureElement(ProcessingElement elementToMeasure)
   at Telerik.Reporting.Paging.InteractiveLayout.PageComposition.GetMaxPageSectionWidth()
   at Telerik.Reporting.Paging.PageCompositionBase.SetCurrentWidthCore()
   at Telerik.Reporting.Paging.PageCompositionBase.set_CurrentPageArea(PageArea value)
   at Telerik.Reporting.Paging.InteractiveLayout.PageComposition.PrepareNewPage()
   at Telerik.Reporting.Paging.InteractiveLayout.PageComposition.NextUsableArea()
   at Telerik.Reporting.Paging.InteractiveLayout.PageComposition.NextVerticalPage()
   at Telerik.Reporting.Paging.InteractiveLayout.PageComposition.PageOverride()
   at Telerik.Reporting.Paging.PagerBase.Page(IPageHandler handler, Report report)
   at Telerik.Reporting.BaseRendering.RenderingExtensionBase.Render(Report report, Hashtable renderingInfo, Hashtable deviceInfo, CreateStream createStreamCallback, EvaluateHeaderFooterExpressions evalHeaderFooterCallback)
   at Telerik.Reporting.Processing.ReportProcessor.RenderCore(String format, IList`1 reports, Hashtable deviceInfo, Hashtable renderingContext, CreateStream createStreamCallback)
   at Telerik.ReportViewer.Common.ReportRenderer.Render(ReportRendererArgs args)

[Hristo]

Hello Shonda,

As seen from the stack trace, the problem is with anchored/docked items placed in a page section. As page sections cannot grow, having docking or anchoring on items is not necessary, so we consider that you can safely remove anchoring from all your items in the page sections and your report would continue to work as expected.

Nevertheless we have addressed the problem in the latest internal build, available for download in your account.

Best wishes,
Hristo
the Telerik team

[Shonda]

Thank you.