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Hi

This is a little snippet of my code

<s:SciChartSurface SeriesSource="{Binding ChartSeries}"
                   YAxes="{Binding YAxisCollection}"
                   XAxis="{Binding XAxis}"
                   Annotations="{Binding AnnotationCollection}"
                   s:HorizontalGroupHelper.HorizontalChartGroup="horizontalChartGroup">

I would like to be able to set throught my ViewModel the “syncWidthGroup” of the HorizontalChartGroup like this.

s:HorizontalGroupHelper.HorizontalChartGroup="{Binding ChartGroup}"

But an exception is thrown saying I can only bind to DP og DO.

    System.Windows.Markup.XamlParseException occurred
  HResult=-2146233087
  Message=A 'Binding' cannot be set on the 'SetHorizontalChartGroup' property of type 'SciChartSurface'. A 'Binding' can only be set on a DependencyProperty of a DependencyObject.
  Source=PresentationFramework
  LineNumber=14
  LinePosition=324
  StackTrace:
       at System.Windows.Markup.WpfXamlLoader.Load(XamlReader xamlReader, IXamlObjectWriterFactory writerFactory, Boolean skipJournaledProperties, Object rootObject, XamlObjectWriterSettings settings, Uri baseUri)
       at System.Windows.Markup.WpfXamlLoader.LoadBaml(XamlReader xamlReader, Boolean skipJournaledProperties, Object rootObject, XamlAccessLevel accessLevel, Uri baseUri)
       at System.Windows.Markup.XamlReader.LoadBaml(Stream stream, ParserContext parserContext, Object parent, Boolean closeStream)
       at System.Windows.Application.LoadComponent(Object component, Uri resourceLocator)
       at Sekal.DrillScene.Desktop.Application.Views.TrackView.InitializeComponent() in c:\dev\projects\SekalApplications\Client\Sekal.DrillScene.Desktop\obj\Debug\decoratedxaml\Application\Views\TrackView.xaml:line 1
       at Sekal.DrillScene.Desktop.Application.Views.TrackView..ctor() in c:\dev\projects\SekalApplications\Client\Sekal.DrillScene.Desktop\Application\Views\TrackView.xaml.cs:line 10
  InnerException: 

So how would I go about doing this through code and not xaml, as I use ViewModel first approach and ViewModels are dynamically appended to an Items collection? (Using Caliburn.Micro)

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