SchedulerControl.CustomDrawDayViewTimeRuler Event

Enables the time ruler to be painted manually.

Namespace: DevExpress.XtraScheduler

Assembly: DevExpress.XtraScheduler.v20.1.dll

Declaration

public event CustomDrawObjectEventHandler CustomDrawDayViewTimeRuler
Public Event CustomDrawDayViewTimeRuler As CustomDrawObjectEventHandler

Event Data

The CustomDrawDayViewTimeRuler 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.

Remarks

The CustomDrawDayViewTimeRuler event fires before a time ruler is painted. The event parameter's CustomDrawObjectEventArgs.ObjectInfo property provides the information required to paint the ruler. The value of this property should be typecast to the DevExpress.XtraScheduler.Drawing.TimeRulerViewInfo type.

You can call the CustomDrawObjectEventArgs.DrawDefault method to perform default painting before applying custom draw.

Set the CustomDrawObjectEventArgs.Handled property to true to prohibit default time ruler painting.

NOTE

The CustomDrawDayViewTimeRuler event is raised only for the Day View and its descendants (Work Week View, Full Week View).

Examples

This example displays an image within the Time Ruler.

CustomDrawDayViewTimeRuler_New

public static void scheduler_CustomDrawDayViewTimeRuler(object sender, DevExpress.XtraScheduler.CustomDrawObjectEventArgs e)
{
    TimeRulerViewInfo info = e.ObjectInfo as TimeRulerViewInfo;
    // Clear all captions.
    foreach (var item in info.Items)
    {
        ViewInfoTextItem viewInfoText = item as ViewInfoTextItem;
        if (viewInfoText != null)
        {
            viewInfoText.Text = string.Empty;
        }
    }
    // Draw the TimeRuler as usual, but with empty captions.
    e.DrawDefault();
    // Draw the image in the header.
    Image im = Image.FromFile("image.png");
    Rectangle imageBounds = new Rectangle(info.HeaderBounds.X, info.HeaderBounds.Y, im.Width, im.Height);
    e.Cache.Graphics.DrawImage(im, imageBounds);
    // Cancel default painting procedure.
    e.Handled = true;
}
See Also