I'm using the semi-bindable API, so I have a xaml like this:
Code: Select all
<lcusb:LightningChartUltimate
ColorTheme="{Binding Theme.Value}"
Title="{Binding ChartTitle.Value}"
ActiveView="{Binding ViewType.Value}">
...
</lcusb:LightningChartUltimate>
System.NullReferenceException: Object reference not set to an instance of an object.
at Arction.Wpf.SemibindableCharting.LightningChartUltimate.AQC(ColorTheme A)
at Arction.Wpf.SemibindableCharting.LightningChartUltimate.ColorThemeChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty dp, Boolean preserveCurrentValue)
at System.Windows.Data.BindingExpressionBase.Invalidate(Boolean isASubPropertyChange)
at System.Windows.Data.BindingExpression.TransferValue(Object newValue, Boolean isASubPropertyChange)
at System.Windows.Data.BindingExpression.Activate(Object item)
at System.Windows.Data.BindingExpression.AttachToContext(AttachAttempt attempt)
at System.Windows.Data.BindingExpression.MS.Internal.Data.IDataBindEngineClient.AttachToContext(Boolean lastChance)
at MS.Internal.Data.DataBindEngine.Task.Run(Boolean lastChance)
at MS.Internal.Data.DataBindEngine.Run(Object arg)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
A more complete stacktrace produced by ChartChartMessage event can be found at: https://pastebin.com/ZQMq5qnG
So I then followed the approach described in this topic: viewtopic.php?f=16&t=653&p=2439&hilit=colorTheme#p2439
However it does not work very well as the result is a partial theme change as you can see in the attached screenshot. It seems that some part of the chart are not rendered with the correct theme.
Thanks in advance.