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 End-User Documentation

Nested Doughnut Chart

Expanded Short Description

The Nested Doughnut Chart is represented by the NestedDoughnutSeriesView object, which belongs to Pie, Doughnut and Funnel Series Views. This view is similar to the Doughnut series view, but compares series with one doughnut nested in another one.

In the image below, the Nested Doughnut chart shows the populations of the United States, Brazil and Russia based on age and grouped by gender (Female and Male series).

Note that to control the size of the nested doughnut's hole, use the DoughnutSeriesView.HoleRadiusPercent property. In the above image, for example, this property is set to 40.

You can define an inner indent between nested doughnuts (NestedDoughnutSeriesView.InnerIndent), specify the relative size for nested doughnut series (NestedDoughnutSeriesView.Weight), and create groups for similar Nested Doughnut series (NestedDoughnutSeriesView.Group).

Expanded Chart Type Characteristics

The table below lists the main characteristics of this chart type.

Feature

Value

Series View type NestedDoughnutSeriesView
Diagram type 2D-SimpleDiagram
Number of arguments per series point 1
Number of values per series point 1
Note

For information on which chart types can be combined with the Nested Doughnut Chart, refer to the Combining Different Series Views document.

Expanded Example

Show Me

A complete sample project is available in the DevExpress Code Examples database at http://www.devexpress.com/example=E5221.

The following example demonstrates how to create a ChartControl with a series of the NestedDoughnutSeriesView type, set its general properties, and add this chart to a form at runtime. Before proceeding with this example, create a Windows Forms Application in Visual Studio, and add all required assemblies in the References list of your project.

Then, add the following code to the Form.Load event handler.

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