/// <summary>
/// Signals to the Chart that a Series no longer needs to use the axis
/// within this series host.
/// </summary>
/// <param name="series">The Series object that no longer needs to use
/// the axis.</param>
/// <param name="axis">The axis that the Series no longer needs to use.
/// </param>
void ISeriesHost.UnregisterWithAxis(Series series, IAxis axis)
{
if (series == null)
{
throw new ArgumentNullException("series");
}
if (axis == null)
{
throw new ArgumentNullException("axis");
}
if (!ActualAxes.Contains(axis))
{
throw new InvalidOperationException(Properties.Resources.Chart_UnregisterWithSeries_OneAxisCannotBeUsedByMultipleCharts);
}
axis.Unregister(series);
// If axis is no longer used and is not in external axes collection
if (!axis.IsUsed && !Axes.Contains(axis))
{
InternalActualAxes.Remove(axis);
}
}
/// <summary>
/// Builds the visual tree for the Chart control when a new template
/// is applied.
/// </summary>
public override void OnApplyTemplate()
{
// Call base implementation
base.OnApplyTemplate();
// Unhook events from former template parts
if (null != ChartArea)
{
ChartArea.Children.Clear();
}
if (null != PlotArea)
{
PlotArea.Children.Clear();
}
if (null != SeriesContainer)
{
SeriesContainer.Children.Clear();
_seriesCollectionSeriesContainerAdapter.TargetList = null;
}
if (null != GridLinesContainer)
{
GridLinesContainer.Children.Clear();
_gridLinesContainerChildrenChartAreaAdapter.TargetList = null;
}
if (null != Legend)
{
Legend.LegendItems.Clear();
_legendChildrenLegendAdapter.TargetList = null;
}
// Access new template parts
ChartArea = GetTemplateChild(ChartAreaName) as Grid;
PlotArea = GetTemplateChild(PlotAreaName) as Grid;
SeriesContainer = GetTemplateChild(SeriesContainerName) as Panel;
GridLinesContainer = GetTemplateChild(GridLinesContainerName) as Panel;
Legend = GetTemplateChild(LegendName) as Legend;
StyleDispenser.Reset();
if (Legend != null)
{
_legendChildrenLegendAdapter.TargetList = Legend.LegendItems;
_legendChildrenLegendAdapter.Populate();
}
if (SeriesContainer != null)
{
_seriesCollectionSeriesContainerAdapter.TargetList = SeriesContainer.Children;
_seriesCollectionSeriesContainerAdapter.Populate();
}
if (GridLinesContainer != null)
{
_gridLinesContainerChildrenChartAreaAdapter.TargetList = GridLinesContainer.Children;
_gridLinesContainerChildrenChartAreaAdapter.Populate();
}
if (ChartArea != null)
{
foreach (Axis axis in ActualAxes.OfType <Axis>())
{
ChartArea.Children.Add(axis);
}
RebuildChartArea();
}
}
