SunburstFlatDataAdapter Class

The data adapter that provides flat data to a sunburst.

Namespace: DevExpress.XtraTreeMap

Assembly: DevExpress.XtraTreeMap.v19.2.dll

Declaration

C#

public class SunburstFlatDataAdapter :
    SunburstDataAdapterBase,
    IFlatDataAdapter,
    IDataSourceProvider

VB.NET

Public Class SunburstFlatDataAdapter
    Inherits SunburstDataAdapterBase
    Implements IFlatDataAdapter,
               IDataSourceProvider

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.

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.

Note

A complete sample project is available at How to: provide flat data to Sunburst.

C#

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;
}

VB.NET

Class SurroundingClass
    Private Sub OnLoad(ByVal sender As Object, ByVal e As EventArgs)
        Dim dataAdapter As SunburstFlatDataAdapter = New SunburstFlatDataAdapter()
        dataAdapter.ValueDataMember = "Annual" 
        dataAdapter.LabelDataMember = "Product" 
        dataAdapter.GroupDataMembers.AddRange(New String() {"Category", "Country"})
        dataAdapter.DataSource = CreateProductInfos()
        sunburstControl.DataAdapter = dataAdapter
    End Sub 
End Class 

Implements

ISunburstDataAdapter

Inheritance

Object

DevExpress.XtraTreeMap.HierarchicalElement

SunburstElement

SunburstDataAdapterBase

SunburstFlatDataAdapter