SunburstFlatDataAdapter Class

The data adapter that provides flat data to a sunburst.

Namespace: DevExpress.XtraTreeMap

Assembly: DevExpress.XtraTreeMap.v21.1.dll

Declaration

public class SunburstFlatDataAdapter :
    SunburstDataAdapterBase,
    IFlatDataAdapter,
    IDataSourceProvider,
    IGroupIndexProvider

Remarks

This data adapter introduces the SunburstFlatDataAdapter.DataSource property that allows you to specify the adapter’s data source, and the SunburstFlatDataAdapter.DataMember, SunburstFlatDataAdapter.LabelDataMember and SunburstFlatDataAdapter.ValueDataMember properties that allow you to specify the data members whose values are used as an item, item’s label and item’s value.

Example

This example demonstrates how to visualize flat data using the SunburstControl.

A sunburst with flat data

Create a SunburstFlatDataAdapter object and assign it to the SunburstControl.DataAdapter property to provide flat data to the Sunburst. Then, specify the adapter’s SunburstFlatDataAdapter.DataSource, SunburstFlatDataAdapter.LabelDataMember and SunburstFlatDataAdapter.ValueDataMember to define data source members that should be used to generate sunburst items. Add data members to the SunburstFlatDataAdapter.GroupDataMembers collection to specify how to group the sunburst’s items.

View Example: How to: provide flat data to Sunburst

private void OnLoad(object sender, EventArgs e) {
    SunburstFlatDataAdapter dataAdapter = new SunburstFlatDataAdapter();            
    dataAdapter.ValueDataMember = "Annual";
    dataAdapter.LabelDataMember = "Product";
    dataAdapter.GroupDataMembers.AddRange(new string[] { "Category", "Country" });
    dataAdapter.DataSource = CreateProductInfos();
    sunburstControl.DataAdapter = dataAdapter;
}
See Also