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Eric
550
Parameters Exceptioin
posted

I am getting the following exception when my view first loads.  I have default parameters set for the report and am using IEnumerable ObjectsSource.

 

Object reference not set to an instance of an object.

at Infragistics.Controls.Reports.XamReportViewer.CheckForReportParameters(Boolean reset)

at Infragistics.Controls.Reports.ViewerStateMachine.Render(Boolean firstRender, IDictionary`2 selectedParameterValues)

at Infragistics.Controls.Reports.ViewerStateMachine.ApplyAutoRender()

at Infragistics.Controls.Reports.ViewerStateMachine.set_IsVisualReady(Boolean value)

at Infragistics.Controls.Reports.XamReportViewer.ReportViewerLoaded(Object sender, RoutedEventArgs e)

at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)

at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)

at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)

at System.Windows.UIElement.RaiseEvent(RoutedEventArgs e)

at System.Windows.BroadcastEventHelper.BroadcastEvent(DependencyObject root, RoutedEvent routedEvent)

at System.Windows.BroadcastEventHelper.BroadcastLoadedEvent(Object root)

at MS.Internal.LoadedOrUnloadedOperation.DoWork()

at System.Windows.Media.MediaContext.FireLoadedPendingCallbacks()

at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()

at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)

at System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)

at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)

at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)

 The report renders when the submit button is clicked on the parameters tab.  The parameters are not held when the user takes the focus off of the report viewer to another view.  I cant find a way to bind the parameters to stop this from happening.

 

Thanks,

Eric Larson

Parents
  • 3070
    posted

    Hi Eric,

    It looks like a bug, but I don’t fully understand the scenario in order to reproduce it.

    Can you give me more details? How do you setup the XamReportViewer? Do you set its properties directly in the xaml or programmatically? SL or WPF?

    What do you mean by “I have default parameters set for the report”? You have parameters with default values, is that what you mean?

    When you say “the user takes the focus off the report viewer” you mean that when the viewer just lost the keyboard focus you lost the parameter values you previously select? Or is that change of focus causing the XamReportViewer to be unloaded from the visual tree?

    Thanks,

    Leo

     

     

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