/// <summary>
/// Updates the <see cref="ChartSeries3D"/> when the segment is reset.
/// </summary>
/// <param name="index">The Index</param>
internal override void OnResetSegment(int index)
{
if (index < Segments.Count && index >= 0)
{
ChartSegment3D segment = Segments[index] as ChartSegment3D;
segment.BindProperties();
foreach (var item in segment.Polygons)
{
item.Fill = segment.Interior;
item.ReDraw();
}
}
}
/// <summary>
/// Updates the chart when the selected segment index collection changed.
/// </summary>
/// <param name="sender">The Sender</param>
/// <param name="e">The Event Argument</param>
internal override void SelectedSegmentsIndexes_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
ChartSelectionChangedEventArgs chartSelectionChangedEventArgs;
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
if (e.NewItems != null && !((ActualArea as SfChart3D).SelectionStyle == SelectionStyle3D.Single))
{
int oldIndex = PreviousSelectedIndex;
int newIndex = (int)e.NewItems[0];
if (newIndex >= 0 && (ActualArea as SfChart3D).EnableSegmentSelection)
{
// Set the SegmentSelectionBrush to newIndex segment Interior
if (newIndex < Segments.Count && this.SegmentSelectionBrush != null)
{
ChartSegment3D segment = Segments[newIndex] as ChartSegment3D;
segment.BindProperties();
foreach (var item in segment.Polygons)
{
item.Fill = this.SegmentSelectionBrush;
item.ReDraw();
}
}
if (newIndex < Segments.Count)
{
chartSelectionChangedEventArgs = new ChartSelectionChangedEventArgs()
{
SelectedSegment = this.SelectedSegment,
SelectedSegments = this.Area.SelectedSegments,
SelectedSeries = this,
SelectedIndex = newIndex,
PreviousSelectedIndex = oldIndex,
NewPointInfo = Segments[newIndex].Item,
PreviousSelectedSegment = null,
PreviousSelectedSeries = null,
IsSelected = true
};
chartSelectionChangedEventArgs.PreviousSelectedSeries = this.Area.PreviousSelectedSeries;
if (oldIndex != -1 && oldIndex < Segments.Count)
{
chartSelectionChangedEventArgs.PreviousSelectedSegment = this.Segments[oldIndex];
chartSelectionChangedEventArgs.OldPointInfo = Segments[oldIndex].Item;
}
(ActualArea as SfChart3D).OnSelectionChanged(chartSelectionChangedEventArgs);
this.PreviousSelectedIndex = newIndex;
}
else if (Segments.Count == 0)
{
this.triggerSelectionChangedEventOnLoad = true;
}
}
}
break;
case NotifyCollectionChangedAction.Remove:
if (e.OldItems != null && !((ActualArea as SfChart3D).SelectionStyle == SelectionStyle3D.Single))
{
int newIndex = (int)e.OldItems[0];
chartSelectionChangedEventArgs = new ChartSelectionChangedEventArgs()
{
SelectedSegment = null,
SelectedSegments = this.Area.SelectedSegments,
SelectedSeries = null,
SelectedIndex = newIndex,
PreviousSelectedIndex = PreviousSelectedIndex,
PreviousSelectedSegment = null,
PreviousSelectedSeries = this,
IsSelected = false
};
if (this.PreviousSelectedIndex != -1 && this.PreviousSelectedIndex < Segments.Count)
{
chartSelectionChangedEventArgs.PreviousSelectedSegment = this.Segments[this.PreviousSelectedIndex];
chartSelectionChangedEventArgs.OldPointInfo = Segments[PreviousSelectedIndex].Item;
}
(ActualArea as SfChart3D).OnSelectionChanged(chartSelectionChangedEventArgs);
this.PreviousSelectedIndex = newIndex;
}
break;
}
}
