SchedulerControl.CustomDrawTimeRegion Event

Handle this event to manually re-paint Time Regions.

Namespace: DevExpress.XtraScheduler

Assembly: DevExpress.XtraScheduler.v23.2.dll

NuGet Package: DevExpress.Win.Scheduler

Declaration

C#

public event EventHandler<CustomDrawTimeRegionEventArgs> CustomDrawTimeRegion

VB.NET

Public Event CustomDrawTimeRegion As EventHandler(Of CustomDrawTimeRegionEventArgs)

Event Data

The CustomDrawTimeRegion event's data class is DevExpress.XtraScheduler.CustomDrawTimeRegionEventArgs.

Remarks

In the DevExpress Scheduler demo this event is handled to draw a “lunch” icon on top of the 1p.m.~2p.m. region.

C#

SvgImage svgImage = DemoUtils.GetResourceSvgImage("Images.Dinner.svg");
scheduler.CustomDrawTimeRegion += (s, e) => {
    if (e.TimeRegion == timeRegion2)
        return;
    e.DrawDefault();
    Rectangle bounds = new Rectangle(e.Bounds.X, e.Bounds.Y, e.Bounds.Width, e.Bounds.Height);
    double scaleFactor = bounds.Height / svgImage.Height;
    Image img = svgImage.Render(null, Math.Min(scaleFactor, 1));
    int x = e.Bounds.Location.X + (e.Bounds.Width / 2 - img.Width / 2);
    int y = e.Bounds.Location.Y + (e.Bounds.Height / 2 - img.Height / 2);
    e.Cache.DrawImage(img, new Point(x, y));
    e.Handled = true;
};

VB.NET

Imports System

Dim svgImage As SvgImage = DemoUtils.GetResourceSvgImage("Images.Dinner.svg")
AddHandler scheduler.CustomDrawTimeRegion, Sub(s, e)
    If e.TimeRegion = timeRegion2 Then
        Return
    End If
    e.DrawDefault()
    Dim bounds As New Rectangle(e.Bounds.X, e.Bounds.Y, e.Bounds.Width, e.Bounds.Height)
    Dim scaleFactor As Double = bounds.Height \ svgImage.Height
    Dim img As Image = svgImage.Render(Nothing, Math.Min(scaleFactor, 1))
    Dim x As Integer = e.Bounds.Location.X + (e.Bounds.Width \ 2 - img.Width \ 2)
    Dim y As Integer = e.Bounds.Location.Y + (e.Bounds.Height \ 2 - img.Height \ 2)
    e.Cache.DrawImage(img, New Point(x, y))
    e.Handled = True
End Sub