/// <summary>
/// Core entry point for creating the <see cref="ChartSeries" /> type defined by this descriptor. Allows inheritors to provide custom implementation.
/// </summary>
/// <param name="context">The context (this is the raw data collection or the data view model) for which a <see cref="ChartSeries" /> needs to be created.</param>
/// <exception cref="System.InvalidOperationException">The base implementation fails to create a valid <see cref="ScatterPointSeries"/> instance.</exception>
protected override ChartSeries CreateInstanceCore(object context)
{
ScatterPointSeries series = base.CreateInstanceCore(context) as ScatterPointSeries;
if (series == null)
{
throw new InvalidOperationException("Expected Scatter series instance.");
}
string xValuePath = this.XValuePath;
if (!string.IsNullOrEmpty(xValuePath))
{
series.XValueBinding = new PropertyNameDataPointBinding(xValuePath);
}
string yValuePath = this.YValuePath;
if (!string.IsNullOrEmpty(yValuePath))
{
series.YValueBinding = new PropertyNameDataPointBinding(yValuePath);
}
return(series);
}
private static void OnYValueBindingChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
ScatterPointSeries presenter = d as ScatterPointSeries;
(presenter.dataSource as ScatterSeriesDataSource).YValueBinding = e.NewValue as DataPointBinding;
}