/// <summary>
/// Creates a new PieChartLabel control and adds it to the "LabelArea_PART" canvas.
/// </summary>
/// <param name="pieDataPoint">PieDataPoint that corresponds to PieChartLabel.</param>
/// <param name="labelStyle">The style to be applied to the PieChartLabel.</param>
/// <param name="labelArea">The canvas where PieChartLabel will be added.</param>
private void AddLabelPieDataPoint(PieDataPoint pieDataPoint, Canvas labelArea)
{
PieChartLabel label = new PieChartLabel();
label.Style = this.PieChartLabelStyle;
label.ContentTemplate = this.PieChartLabelItemTemplate;
Binding contentBinding = new Binding("DataContext")
{
Source = pieDataPoint
};
label.SetBinding(ContentControl.ContentProperty, contentBinding);
Binding dataContextBinding = new Binding("DataContext")
{
Source = pieDataPoint
};
label.SetBinding(ContentControl.DataContextProperty, contentBinding);
Binding formattedRatioBinding = new Binding("FormattedRatio")
{
Source = pieDataPoint
};
label.SetBinding(PieChartLabel.FormattedRatioProperty, formattedRatioBinding);
Binding visibilityBinding = new Binding("Ratio")
{
Source = pieDataPoint, Converter = new DoubleToVisibilityConverter()
};
label.SetBinding(PieChartLabel.VisibilityProperty, visibilityBinding);
Binding geometryBinding = new Binding("Geometry")
{
Source = pieDataPoint
};
label.SetBinding(PieChartLabel.GeometryProperty, geometryBinding);
Binding displayModeBinding = new Binding("LabelDisplayMode")
{
Source = this
};
label.SetBinding(PieChartLabel.DisplayModeProperty, displayModeBinding);
labelArea.Children.Add(label);
pieDataPoint.Unloaded += delegate
{
labelArea.Children.Remove(label);
};
pieDataPoint.Loaded += delegate
{
if (label.Parent == null)
{
labelArea.Children.Add(label);
}
};
}