SunburstFlatDataAdapter.ValueDataMember Property

Gets or sets the name of the data field whose values are used to generate SunburstItem.Value values.

Namespace: DevExpress.XtraTreeMap

Assembly: DevExpress.XtraTreeMap.v20.1.dll

Declaration

[DefaultValue("")]
[XtraSerializableProperty]
public string ValueDataMember { get; set; }
<DefaultValue("")>
<XtraSerializableProperty>
Public Property ValueDataMember As String

Property Value

Type Default Description
String

String.Empty

A String value.

Examples

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.

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;
}

Implements

DevExpress.TreeMap.Native.IFlatDataAdapter.ValueDataMember
See Also