/// <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="OhlcSeriesBase"/> instance.</exception>
protected override ChartSeries CreateInstanceCore(object context)
{
OhlcSeriesBase series = base.CreateInstanceCore(context) as OhlcSeriesBase;
if (series == null)
{
throw new InvalidOperationException("Expected Ohlc series instance.");
}
string openPath = this.OpenPath;
if (!string.IsNullOrEmpty(openPath))
{
series.OpenBinding = new PropertyNameDataPointBinding(openPath);
}
string highPath = this.HighPath;
if (!string.IsNullOrEmpty(highPath))
{
series.HighBinding = new PropertyNameDataPointBinding(highPath);
}
string lowPath = this.LowPath;
if (!string.IsNullOrEmpty(lowPath))
{
series.LowBinding = new PropertyNameDataPointBinding(lowPath);
}
string closePath = this.ClosePath;
if (!string.IsNullOrEmpty(closePath))
{
series.CloseBinding = new PropertyNameDataPointBinding(closePath);
}
string categoryPath = this.CategoryPath;
if (!string.IsNullOrEmpty(categoryPath))
{
series.CategoryBinding = new PropertyNameDataPointBinding(categoryPath);
}
return(series);
}
private static void OnCloseBindingChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
OhlcSeriesBase presenter = d as OhlcSeriesBase;
(presenter.dataSource as OhlcSeriesDataSource).CloseBinding = e.NewValue as DataPointBinding;
}