SchedulerControl.CustomDrawTabHeader Event
Allows you to paint resource tab headers.
Namespace: DevExpress.XtraScheduler
Assembly: DevExpress.XtraScheduler.v23.2.dll
NuGet Package: DevExpress.Win.Scheduler
Declaration
Event Data
The CustomDrawTabHeader event's data class is CustomDrawObjectEventArgs. The following 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. |
The event data class exposes the following methods:
| Method | Description |
|---|---|
| DrawDefault() | Renders the element using the default drawing mechanism. |
| DrawHtml(HtmlTemplate, DxHtmlPainterContext, Action<DxHtmlPainterArgs>) | Paints the required HTML template inside an element that raised this event. The context parameter allows you to assign an object that transfers mouse events to template elements. |
| DrawHtml(HtmlTemplate, Action<DxHtmlPainterArgs>) | Paints the required HTML template inside an element that raised this event. |
| GetDisplayValue(String) | |
| GetValue(String) |
Remarks
The Scheduler control displays resources as tabs if the ResourceDisplayStyle property is set to ResourceDisplayStyle.Tabs. The Scheduler control fires the CustomDrawTabHeader event for each resource tab. Handle this event to paint tab headers.
Set the e.Handled property to true to custom paint the resource tabs and prevent default painting.
using DevExpress.XtraScheduler.Drawing;
private void schedulerControl_CustomDrawTabHeader(object sender, CustomDrawObjectEventArgs e) {
SchedulerHeaderTab header = e.ObjectInfo as SchedulerHeaderTab;
if(header.Caption == schedulerControl.ActiveView.SelectedResource.Caption) {
/*
* Custom paint the selected tab header.
*/
e.Handled = true;
}
}