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Related to: https://www.scichart.com/questions/wpf/exporttofile-exception-the-provided-dependencyobject-is-not-a-context-for-this-freezable

I got no reply…

I’m able to reproduce the issue in the thread above, or at least a similar issue with version 5.4

What my code has is a “Start/Stop” button. When “Start” is pressed, the Axes are cleared and re-initialized.
If just using Start / Stop then it works, but if I export the chart into an image (a PNG in that matter), and after few seconds I click on the “Start”, then few seconds later, the software crash on the exception mentioned above.

From what I’ve been able to debug, the Export to image create a new chart control with all the bindings, and renders it to an image.
When I click on start, then the Axis (in this case, I see that the Y Axes are the ones that cause it) are cleared and created in my view model, and therefore it also affects the chart.
The binding of the chart that was created for the rendering is probably not cleared, so it gets the change event after some time, and Arrange is being called.

I see that ArrangeOverride on the AxisPanel is called, and _axisTitle,Arrange is called at this point the application crashes.

Please fix it.

Btw, this is the stack trace:

Exception Info: System.ArgumentException
at System.Windows.Freezable.RemoveContextInformation(System.Windows.DependencyObject, System.Windows.DependencyProperty)
at System.Windows.Freezable.RemoveInheritanceContext(System.Windows.DependencyObject, System.Windows.DependencyProperty)
at System.Windows.DependencyObject.RemoveSelfAsInheritanceContext(System.Windows.DependencyObject, System.Windows.DependencyProperty)
at System.Windows.Freezable.OnFreezablePropertyChanged(System.Windows.DependencyObject, System.Windows.DependencyObject, System.Windows.DependencyProperty)
at System.Windows.Media.RenderData.PropagateChangedHandler(System.EventHandler, Boolean)
at System.Windows.UIElement.RenderClose(System.Windows.Media.IDrawingContent)
at System.Windows.Media.RenderDataDrawingContext.DisposeCore()
at System.Windows.Media.DrawingContext.System.IDisposable.Dispose()
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at MS.Internal.Helper.ArrangeElementWithSingleChild(System.Windows.UIElement, System.Windows.Size)
at System.Windows.Controls.ContentPresenter.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Control.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at MS.Internal.Helper.ArrangeElementWithSingleChild(System.Windows.UIElement, System.Windows.Size)
at System.Windows.Controls.ContentPresenter.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Control.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Control.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at SciChart.Charting.Themes.AxisPanel.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Grid.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.StackPanel.StackArrangeHelper(System.Windows.Controls.IStackMeasure, System.Windows.Controls.IStackMeasureScrollData, System.Windows.Size)
at System.Windows.Controls.StackPanel.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Border.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Control.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.StackPanel.StackArrangeHelper(System.Windows.Controls.IStackMeasure, System.Windows.Controls.IStackMeasureScrollData, System.Windows.Size)
at System.Windows.Controls.StackPanel.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at MS.Internal.Helper.ArrangeElementWithSingleChild(System.Windows.UIElement, System.Windows.Size)
at System.Windows.Controls.ItemsPresenter.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Border.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Control.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Grid.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Border.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Control.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.ContextLayoutManager.UpdateLayout()
at System.Windows.ContextLayoutManager.UpdateLayoutCallback(System.Object)
at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
at System.Windows.Media.MediaContext.RenderMessageHandlerCore(System.Object)
at System.Windows.Media.MediaContext.RenderMessageHandler(System.Object)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(System.Object)
at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
at MS.Internal.CulturePreservingExecutionContext.Run(MS.Internal.CulturePreservingExecutionContext, System.Threading.ContextCallback, System.Object)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
at MS.Win32.HwndWrapper.WndProc(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(System.Object)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(System.Windows.Threading.DispatcherPriority, System.TimeSpan, System.Delegate, System.Object, Int32)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr, Int32, IntPtr, IntPtr)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(System.Windows.Interop.MSG ByRef)
at System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame)
at System.Windows.Application.RunDispatcher(System.Object)
at System.Windows.Application.RunInternal(System.Windows.Window)
at Unitronics.Shell.UI.App.Main()

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