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 End-User Documentation

BandedGridView.CustomDrawBandHeader Event

Enables you to custom paint band headers.

Namespace:DevExpress.XtraGrid.Views.BandedGrid
Assembly:DevExpress.XtraGrid.v18.1.dll

Expanded Syntax

Expanded Event Data

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

The following BandHeaderCustomDrawEventArgs properties provide information specific to this event.
Property Description
Appearance Gets the painted element's appearance settings.
Band Gets the band whose header is to be painted. Returns null if an "empty band header" is currently being painted.
Bounds Returns a value specifying limits for the drawing area.
Cache Provides methods to paint on drawing surfaces in GDI+ and DirectX modes. See DirectX hardware acceleration to learn more.
Graphics A GDI+ drawing surface. Use the CustomDrawEventArgs.Cache property instead if you enable the DirectX hardware acceleration.
Handled Gets or sets a value specifying whether an event was handled and that the default element painting is therefore not required.
Info Gets an object providing View information for the band header being painted.
Painter Gets the painter object that provides the default element painting mechanism.

Expanded Remarks

The CustomDrawBandHeader event fires when a band header is about to be painted. See the Custom Painting Basics and Custom Painting Scenarios topics for information on using custom draw events.

Note

The control's events designed to change the appearance or rendering of control elements must not be used to update cell values or to modify the control's layout. Any inappropriate operation which causes a layout update, may break the normal control behavior.

Expanded Example

The following code shows a CustomDrawBandHeader event handler used for painting band headers in a custom manner.

A band in the pressed state is painted with a 3D effect.

Expanded See Also

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