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      CustomDrawDayHeader Event
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 End-User Documentation

TimelineScaleHeaders.CustomDrawDayHeader Event

Enables timeline headers to be painted in a custom manner.

Namespace:DevExpress.XtraScheduler.Reporting
Assembly:DevExpress.XtraScheduler.v17.2.Reporting.dll

Expanded Syntax

Expanded Event Data

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

The following CustomDrawObjectEventArgs properties provide information specific to this event.
Property Description
Bounds Returns the bounding rectangle of the drawing area.
Cache Gets an object which specifies the storage for the pens, fonts and brushes. Use it for custom painting in Scheduler Reports.
Graphics Gets an object used for painting.
Handled Gets or sets whether an event was handled. If it was handled, the default actions are not required.
ObjectInfo Gets information on the painted element.

Expanded Remarks

The CustomDrawDayHeader event is raised before an instance of the TimelineScaleHeaders is printed. The event parameter's CustomDrawObjectEventArgs.ObjectInfo property provides information on the visual element being painted. The return value of this property should be typecast to the DevExpress.XtraScheduler.Drawing.TimeScaleHeader type.

Note

Use the CustomDrawObjectEventArgs.Cache property to paint shapes, write a text and insert images. Do not use the CustomDrawObjectEventArgs.Graphics object in Scheduler Reports.

Set the CustomDrawObjectEventArgs.Handled property to true to prohibit default painting. Call the CustomDrawObjectEventArgs.DrawDefault method to perform the default drawing procedure if necessary.

The following code sample illustrates the use of the CustomDrawDayHeader event to draw a gradient fill using resource colors. The XtraSchedulerReport.GetResourceColorSchema method is used to obtain colors used to paint elements that belong to different resources.

Expanded See Also

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