TimeCellsControlBase.CustomDrawTimeCell Event

Enables time cells to be painted in a custom manner.

Namespace: DevExpress.XtraScheduler.Reporting

Assembly: DevExpress.XtraScheduler.v21.2.Reporting.dll

Declaration

public event CustomDrawObjectEventHandler CustomDrawTimeCell

Event Data

The CustomDrawTimeCell 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.

Remarks

Use the CustomDrawTimeCell event to paint time cells in a custom manner. The cell’s bounding rectangle is identified by the CustomDrawObjectEventArgs.Bounds parameter.

If you custom paint a cell via this event , set the CustomDrawObjectEventArgs.Handled parameter to true. This will indicate that the default painting is not required.

Call the CustomDrawObjectEventArgs.DrawDefault method to perform the default drawing procedure when necessary.

Use the CustomDrawObjectEventArgs.ObjectInfo parameter to get information on the cell currently being painted. You should cast the object to an appropriate type - the TimeCell or the ExtendedCell (for DayViewTimeCells.ExtraCells).

Note

Use the CustomDrawObjectEventArgs.Cache property to paint shapes, write a text and insert images. Do not use the CustomDrawObjectEventArgs.Graphics object in Scheduler Reports.

The following example demonstrates the use of a CustomDrawTimeCell event to add shading to the background of DayViewTimeCells.ExtraCells.

using DevExpress.XtraScheduler.Reporting;
using DevExpress.XtraScheduler.Drawing;
// ...
private void dayViewTimeCells1_CustomDrawTimeCell(object sender, CustomDrawObjectEventArgs e)
{
    TimeCell cell = (TimeCell)e.ObjectInfo;
    if(cell is ExtendedCell) {
        SchedulerColorSchema schema = GetResourceColorSchema(cell.Resource);
        cell.Appearance.BackColor = Color.White;
        cell.Appearance.BackColor2 = schema.CellLight;
        e.DrawDefault();
    }
    e.Handled = true;
}

This event is analogous to the SchedulerControl.CustomDrawTimeCell event of the Scheduler control.

See Also