SchedulerControl.CustomDrawTimeRegion Event

Handle this event to manually re-paint Time Regions.

Namespace: DevExpress.XtraScheduler

Assembly: DevExpress.XtraScheduler.v19.2.dll

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

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the CustomDrawTimeRegion event.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-create-a-time-cell-area-restricted-for-appointments-e58/CS/Form1.cs#L21

this.WindowState = FormWindowState.Maximized;
schedulerControl1.CustomDrawTimeRegion += SchedulerControl1_CustomDrawTimeRegion;
schedulerControl1.TimeRegionCustomize += SchedulerControl1_TimeRegionCustomize;

VB.NET

how-to-create-a-time-cell-area-restricted-for-appointments-e58/VB/Form1.vb#L22

Me.WindowState = FormWindowState.Maximized
AddHandler schedulerControl1.CustomDrawTimeRegion, AddressOf SchedulerControl1_CustomDrawTimeRegion
AddHandler schedulerControl1.TimeRegionCustomize, AddressOf SchedulerControl1_TimeRegionCustomize