/// <summary>
/// Updates the pie chart legend.
/// </summary>
private void Update()
{
if (_itemsPanel == null)
return;
_itemsPanel.Children.Clear();
if (_pieChart != null)
{
foreach (var symbol in _pieChart.GetPieChartLegendSymbols())
{
var legendItem = new LegendItem();
legendItem.DataContext = symbol.DataContext;
legendItem.Symbol = symbol;
legendItem.Label = symbol.DataContext;
legendItem.SetBinding(StyleProperty, new Binding("LegendItemStyle") { Source = this });
_itemsPanel.Children.Add(legendItem);
}
}
}
/// <summary>
/// Updates the legends.
/// </summary>
private void Update()
{
if (_itemsPanel == null)
return;
_itemsPanel.Children.Clear();
if (_chartElements == null || _chartElements.Count <= 0)
return;
// Populate panel with legend items.
foreach (var chartElement in _chartElements)
{
var legendItem = new LegendItem();
legendItem.Symbol = chartElement.GetLegendSymbol();
legendItem.SetBinding(LegendItem.LabelProperty, new Binding("Title") { Source = chartElement });
legendItem.SetBinding(StyleProperty, new Binding("LegendItemStyle") { Source = this });
legendItem.SetBinding(VisibilityProperty, new Binding("IsVisibleInLegend") { Source = chartElement, Converter = BooleanToVisibilityConverter });
_itemsPanel.Children.Add(legendItem);
}
}
