SchedulerControl.CustomDrawWeekViewTopLeftCorner Event

Enables the top left corner of the week view to be painted manually.

Namespace: DevExpress.XtraScheduler

Assembly: DevExpress.XtraScheduler.v24.1.dll

NuGet Package: DevExpress.Win.Scheduler

Declaration

C#

public event CustomDrawObjectEventHandler CustomDrawWeekViewTopLeftCorner

VB.NET

Public Event CustomDrawWeekViewTopLeftCorner As CustomDrawObjectEventHandler

Event Data

The CustomDrawWeekViewTopLeftCorner 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 CustomDrawWeekViewTopLeftCorner event is raised by the WeekView, MonthView and the TimelineView when they are grouped by dates (SchedulerViewBase.GroupType is set to the SchedulerGroupType.Date). This event occurs before the top left corner of the view is painted.

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 painting.

Example

This example inserts text in the top left corner of the WeekView view and its descendants - the MonthView and the TimelineView views.

CustomDraw.cs

public static void scheduler_CustomDrawWeekViewTopLeftCorner(object sender, DevExpress.XtraScheduler.CustomDrawObjectEventArgs e)
{
    e.DrawDefault();
    UpperLeftCorner objectToDraw = e.ObjectInfo as UpperLeftCorner;
    string text = "Employee";
    // Draw the text rotated 45 degrees counterclockwise.
    Font myFont = objectToDraw.CaptionAppearance.Font;
    SizeF textSize = e.Graphics.MeasureString(text, myFont);
    e.Graphics.TranslateTransform(e.Bounds.Width / 2, e.Bounds.Height / 2);
    e.Graphics.RotateTransform(-45f);
    e.Graphics.DrawString(text, myFont, Brushes.Blue, -(textSize.Width / 2.0f), -(textSize.Height / 2.0f));
    e.Graphics.RotateTransform(45f);
    e.Graphics.TranslateTransform(-e.Bounds.Width / 2, -e.Bounds.Height / 2);
    e.Handled = true;
}

CustomDraw.vb

Public Shared Sub scheduler_CustomDrawWeekViewTopLeftCorner(ByVal sender As Object, ByVal e As DevExpress.XtraScheduler.CustomDrawObjectEventArgs)
    e.DrawDefault()
    Dim objectToDraw As UpperLeftCorner = TryCast(e.ObjectInfo, UpperLeftCorner)
    Dim text As String = "Employee"
    ' Draw the text rotated 45 degrees counterclockwise.
    Dim myFont As Font = objectToDraw.CaptionAppearance.Font
    Dim textSize As SizeF = e.Graphics.MeasureString(text, myFont)
    e.Graphics.TranslateTransform(e.Bounds.Width \ 2, e.Bounds.Height \ 2)
    e.Graphics.RotateTransform(-45F)
    e.Graphics.DrawString(text, myFont, Brushes.Blue, -(textSize.Width / 2.0F), -(textSize.Height / 2.0F))
    e.Graphics.RotateTransform(45F)
    e.Graphics.TranslateTransform(-e.Bounds.Width \ 2, -e.Bounds.Height \ 2)
    e.Handled = True
End Sub