The Values property contains all the donut slices in the donut chart. Each donut slice (TRSDonutChartExValue) may have its own Color and Caption. The size of the donut slice is specified by the StartAngle and SweepAngle properties. The width of the slice is controlled by the InnerRadius and OuterRadius properties.
Use the Values collection to add, delete, and modify donut slices in the chart.