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View this topic on docs.devexpress.com (Learn more)

ChartControl.CustomDrawSeries Event

Occurs before a Series is drawn when the chart's contents are being drawn.

Namespace:DevExpress.XtraCharts
Assembly:DevExpress.XtraCharts.v19.2.UI.dll

Expanded Syntax

Expanded Event Data

The event handler receives an argument of type CustomDrawSeriesEventArgs containing data related to this event.

Expanded Remarks

The CustomDrawSeries event is raised before every Series is painted. The event parameter's DevExpress.XtraCharts.CustomDrawSeriesEventArgsBase.Series property provides the series which enables the series view and other specific series options to be determined. And the DevExpress.XtraCharts.CustomDrawSeriesEventArgsBase.SeriesDrawOptions property provides the drawing options specific to each series. Note that the return value of this property should be typecast to the corresponding type (e.g., DevExpress.XtraCharts.BarDrawOptions).

The CustomDrawSeries and CustomDrawSeriesPoint events are always raised in the following order.

  • The CustomDrawSeries event for the first series in the chart's Series collection. The first series in the series collection is a DevExpress.XtraCharts.Series which the DevExpress.XtraCharts.SeriesCollection.IndexOf method returns 0 for.
  • The CustomDrawSeriesPoint event for all the series points of the first series.
  • The CustomDrawSeries event for the second series in the chart's Series collection.
  • The CustomDrawSeriesPoint event for all the series points of the second series.
  • ...and so on for all the other series and their points.

Expanded Example

This example demonstrates how to implement custom drawing in charts when drawing its Series. To do this you should handle the CustomDrawSeries event, and then you're able to change some drawing parameters using its event args.

Note

For the DevExpress.XtraCharts.Web.WebChartControl you should handle its DevExpress.XtraCharts.Web.WebChartControl.CustomDrawSeries event to implement this task.

Expanded See Also

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