The DevExpress.XtraCharts.DoughnutSeriesView model.
public class DoughnutSeriesViewModel : PieSeriesViewModel
Public Class DoughnutSeriesViewModel Inherits PieSeriesViewModel
System.Object ChartElementModel SeriesViewBaseModel SimpleDiagramSeriesViewBaseModel PieSeriesViewBaseModel PieSeriesViewModel DoughnutSeriesViewModel NestedDoughnutSeriesViewModel