windowsforms-devexpress-dot-xtratreemap-dot-sunburstflatdataadapter-c683bd9f.md
Gets or sets the names of data source members used to group sunburst items generated from the data source.
Namespace : DevExpress.XtraTreeMap
Assembly : DevExpress.XtraTreeMap.v25.2.dll
NuGet Package : DevExpress.TreeMap
[XtraSerializableProperty(XtraSerializationVisibility.Hidden)]
public GroupDataMemberCollection GroupDataMembers { get; }
<XtraSerializableProperty(XtraSerializationVisibility.Hidden)>
Public ReadOnly Property GroupDataMembers As GroupDataMemberCollection
| Type | Description |
|---|---|
| GroupDataMemberCollection |
A collection of String values that specify the data member’s names.
|
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.
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;
}
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
See Also