jseymour

This could very well be an error on my part but I am getting an Null Reference error when attempting to data bind a ObservableCollection<T> to a Chart control in WPF. I am attempting to drill down into an object contained in my collection as follows: <cfx:Chart ItemsSource="{Binding Collection}" Gallery="Line"> <cfx:Chart.AxisX> <cfx:Axis> <cfx:Axis.Labels> <cfx:AxisLabelAttributes Format="Date" CustomFormat="M/d H:mm" /> </cfx:Axis.Labels> </cfx:Axis> </cfx:Chart.AxisX> <cfx:Chart.Series> <cfx:SeriesAttributes BindingPath="TChildProperty.Property1" BindingPathX="TChildProperty.CompletedOn" /> <cfx:SeriesAttributes BindingPath="TChildProperty.Property2" BindingPathX="TChildProperty.CompletedOn" /> <cfx:SeriesAttributes BindingPath="TChildProperty.Property3" BindingPathX="TChildProperty.CompletedOn" /> </cfx:Chart.Series> </cfx:Chart> Where "Collection" is my ObservableCollection<T> and "T" is my type in the ObservableCollection. "TChildProperty" is a property from "T" and is an object itselft. The properties off of "TChildProperty" are all valid and everything is populated. Here is my stack trace: at bk..ctor(Type A_0, String A_1)\r\n at ChartFX.WPF.Internal.ColumnGetter.Detect(Object obj, Type type, String name)\r\n at ao.a(Object A_0, Object A_1, Type A_2, Int32 A_3)\r\n at b3.a(Object A_0, Object A_1, Type A_2, Int32 A_3)\r\n at ChartFX.WPF.DataValues.a(IEnumerable A_0, Int32 A_1, Int32 A_2, NotifyCollectionChangedAction A_3, IIndexedCollection`1 A_4, bq A_5)\r\n at ChartFX.WPF.DataValues.a(IEnumerable A_0, Int32 A_1, Int32 A_2, NotifyCollectionChangedAction A_3, bq A_4)\r\n at ChartFX.WPF.DataValues.a(bq A_0, Boolean A_1)\r\n at ChartFX.WPF.Chart.av()\r\n at ChartFX.WPF.Chart.a(Object A_0, RoutedEventArgs A_1)\r\n at ........ Help!