/// <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="CategoricalSeries"/> instance.</exception>
protected override ChartSeries CreateInstanceCore(object context)
{
CategoricalSeriesBase series = base.CreateInstanceCore(context) as CategoricalSeriesBase;
if (series == null)
{
throw new InvalidOperationException("Expected Categorical series instance.");
}
string valuePath = this.ValuePath;
if (!string.IsNullOrEmpty(valuePath))
{
series.ValueBinding = new PropertyNameDataPointBinding(valuePath);
}
string categoryPath = this.CategoryPath;
if (!string.IsNullOrEmpty(categoryPath))
{
series.CategoryBinding = new PropertyNameDataPointBinding(categoryPath);
}
return(series);
}
private static void OnCategoryBindingChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
CategoricalSeriesBase presenter = d as CategoricalSeriesBase;
(presenter.dataSource as CategoricalSeriesDataSourceBase).CategoryBinding = e.NewValue as DataPointBinding;
}
