データ バインディング

Public Class Data
        Implements INotifyPropertyChanged
        Private _Name As String
        Public Property Name() As String
        Get
                Return _Name
        End Get
        Set(ByVal value As String)
                _Name = value
        End Set
        End Property
        Private _value As Integer
        Public Property Value() As Integer
        Get
               Return _value
        End Get
        Set(ByVal value As Integer)
                _value = value
                RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs("Value"))
        End Set
        End Property
        Public Event PropertyChanged(ByVal sender As Object, ByVal e As PropertyChangedEventArgs) Implements INotifyPropertyChanged.PropertyChanged
End Class

public class Data : INotifyPropertyChanged
{
        public string Name { get; set; }
        private int _value;
        public int Value
        {
                get { return _value; }
                set
                {
                        _value = value;
                        if (this.PropertyChanged != null) this.PropertyChanged(this, new PropertyChangedEventArgs("Value"));
                }
        }
        private ObservableCollection<Data> _subData = new ObservableCollection<Data>();
        public ObservableCollection<Data> SubData
        {
                get { return _subData; }
                set
                {
                        _subData = value;
                        if (this.PropertyChanged != null) this.PropertyChanged(this, new PropertyChangedEventArgs("SubData"));
                }
        }
        #region INotifyPropertyChanged Members
        public event PropertyChangedEventHandler PropertyChanged;
        #endregion
}

Dim data As ObservableCollection(Of Data) = GetData()
myTreemap.DataContext = data

ObservableCollection<Data> data = GetData();
myTreemap.DataContext = data;

<ig:xamTreemap
        x:Name="myTreemap"
        ItemsSource="{Binding}">
    <ig:xamTreemap.NodeBinders>
        <ig:NodeBinder
                TextPath="Name"
                ValuePath="Value"
                TargetTypeName="Data"
                ItemsSourcePath="SubData"/>
    </ig:xamTreemap.NodeBinders>
</ig:xamTreemap>