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 End-User Documentation
View this topic on docs.devexpress.com (Learn more)

ChartControl.CustomPaint Event

Occurs after all the chart's visual elements have been drawn.

Namespace:DevExpress.XtraCharts
Assembly:DevExpress.XtraCharts.v18.2.UI.dll

Expanded Syntax

Expanded Event Data

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

The following CustomPaintEventArgs properties provide information specific to this event.
Property Description
Bounds Gets the bounds of a custom graphic object.
Graphics Gets the custom graphic object.

Expanded Remarks

Use the CustomPaint event, to draw custom graphics over your chart.

Cast the Event Args object to the DXCustomPaintEventArgs class and use its DXCustomPaintEventArgs.Cache property to draw custom content properly in the control surface correctly in the DirectX mode. Note that this property also allows you to draw custom content in the GDI+ mode.

For example, the DevExpress.XtraCharts.XYDiagram2D.DiagramToPoint and DevExpress.XtraCharts.RadarDiagram.DiagramToPoint methods allow you to draw custom content tied to existing chart elements (series, series points and so on) when you utilize them in the event handler.

Important

Changes made by the event handler does not affect 3D charts.

Expanded Example

This example demonstrates how to use the DXCustomPaintEventArgs class to display custom image over the chart.

Expanded See Also

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