System.Object
   System.EventArgs
      C1.Xaml.Chart.SeriesEventArgs
      System.ComponentModel.CancelEventArgs
         C1.Chart.BaseRenderEventArgs
            C1.Xaml.Chart.RenderEventArgs
            C1.Xaml.Chart.RenderNodeEventArgs
            C1.Xaml.Chart.RenderSliceEventArgs
               C1.Xaml.Chart.RenderPieDataLabelEventArgs
            C1.Xaml.Chart.RenderSymbolEventArgs
               C1.Xaml.Chart.RenderDataLabelEventArgs
   Windows.UI.Xaml.DependencyObject
      C1.Xaml.Chart.Axis
      C1.Xaml.Chart.ChartOptions
      C1.Xaml.Chart.ChartStyle
      C1.Xaml.Chart.DataLabelBase
         C1.Xaml.Chart.DataLabel
         C1.Xaml.Chart.PieDataLabel
      C1.Xaml.Chart.NormalCurve
      C1.Xaml.Chart.PlotArea
      C1.Xaml.Chart.Series
         C1.Xaml.Chart.BoxWhisker
         C1.Xaml.Chart.ErrorBar
         C1.Xaml.Chart.Histogram
         C1.Xaml.Chart.RadarSeries
         C1.Xaml.Chart.RangedHistogram
         C1.Xaml.Chart.TestSeries
         C1.Xaml.Chart.TrendLine
         C1.Xaml.Chart.Waterfall
      Windows.UI.Xaml.UIElement
         Windows.UI.Xaml.FrameworkElement
            Windows.UI.Xaml.Controls.Control
               C1.Xaml.Chart.FlexChartBase
                  C1.Xaml.Chart.C1FlexChart
                     C1.Xaml.Chart.C1FlexRadar
                  C1.Xaml.Chart.C1FlexPie
                     C1.Xaml.Chart.C1Sunburst
                  C1.Xaml.Chart.C1TreeMap

Reference

C1.UWP.FlexChart Assembly