SunburstFlatDataAdapter.LabelDataMember Property

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

Namespace: DevExpress.XtraTreeMap

Assembly: DevExpress.XtraTreeMap.v22.1.dll

NuGet Package: DevExpress.TreeMap

Declaration

C#

[DefaultValue("")]
[XtraSerializableProperty]
public string LabelDataMember { get; set; }

VB.NET

<DefaultValue("")>
<XtraSerializableProperty>
Public Property LabelDataMember As String

Property Value

Type	Default	Description
String	String.Empty	A String 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.

View Example: 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 

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the LabelDataMember property.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

winforms-dashboard-custom-items-extension/CS/CustomItemExtension/CustomItems/SunburstChart/SunburstItemControlProvider.cs#L68

sunburst.Colorizer = null;
dataAdapter.DataSource = dataAdapter.ValueDataMember = dataAdapter.LabelDataMember = null;
dataAdapter.GroupDataMembers.Clear();

VB.NET

winforms-dashboard-custom-items-extension/VB/CustomItemExtension/CustomItems/SunburstChart/SunburstItemControlProvider.vb#L77

sunburst.Colorizer = Nothing
dataAdapter.LabelDataMember = Nothing
dataAdapter.ValueDataMember = dataAdapter.LabelDataMember