TimeInterval.Duration Property

Gets or sets the duration of the time interval.

Namespace: DevExpress.XtraScheduler

Assembly: DevExpress.XtraScheduler.v18.1.Core.dll

Declaration

C#

[XtraSerializableProperty(XtraSerializationFlags.DefaultValue)]
public virtual TimeSpan Duration { get; set; }

VB.NET

<XtraSerializableProperty(XtraSerializationFlags.DefaultValue)>
Public Overridable Property Duration As TimeSpan

Property Value

Type	Description
TimeSpan	A TimeSpan value representing the duration of the time interval.

Remarks

The Duration property and the TimeInterval.Start property specify the value of the TimeInterval.End property for the time interval. This value is always calculated as End = Start + Duration.

Note: If the TimeInterval.AllDay property is set to true, then the Duration is always divisible by 24 hours.

Note: The Ticks property value of the Duration should be greater than or equal to 0.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the Duration property.

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-show-images-for-tentative-and-working-elsewhere-appointment-statuses-t344062/CS/CustomStatusSample/AppointmentTemplates/HorizontalAppointment.ascx.cs#L65

{
    int width = Convert.ToInt32(Container.AppointmentViewInfo.Appointment.Duration.TotalSeconds / Container.AppointmentViewInfo.Interval.Duration.TotalSeconds * 100);
    TimeSpan fromStart = Container.AppointmentViewInfo.Appointment.Start.Subtract(Container.AppointmentViewInfo.Interval.Start);

how-to-draw-a-horizontal-line-indicating-current-time-e2469/CS/HorzLineIndicator/Form1.cs#L43

TimeSpan nowOffset = now.TimeOfDay - interval.Start.TimeOfDay;
float offsetRatio = nowOffset.Ticks / (float)interval.Duration.Ticks;
nowRect.Y += (int)(rect.Height * offsetRatio);

how-to-change-the-scrolling-behavior-on-mouse-wheel-over-the-scheduler-control-e2279/CS/ChangeScrollValue/Form1.cs#L25

TimeInterval ti = new TimeInterval(schedulerControl1.ActiveView.SelectedInterval.Start.Date, topRowTime);
if ((e.Delta > 0 && ti.Duration.TotalSeconds == 0) || (e.Delta < 0 && ti.Duration.TotalHours == 24))
    return;

how-to-implement-precise-drag-and-drop-and-resizing-of-appointments-in-day-work-week-view-e4497/CS/OneMinuteDragDrop/Handlers/SchedulerMoveEventHandler.cs#L44

       (double)(MousePosition.Y - TimeCellViewInfo.Bounds.Y) / (double)TimeCellViewInfo.Bounds.Height : 0;
    return TimeSpan.FromMinutes(TimeCellViewInfo.Interval.Duration.TotalMinutes * percent);
}

how-to-resize-an-appointment-without-snapping-it-to-time-cells-e2341/CS/WindowsApplication1/Form1.cs#L113

double perc = (double)(mousePosition.Y - shi.ViewInfo.Bounds.Y) / (double)shi.ViewInfo.Bounds.Height;
TimeSpan timetoAdd = TimeSpan.FromMinutes(e.HitInterval.Duration.TotalMinutes * perc);

VB.NET

how-to-show-images-for-tentative-and-working-elsewhere-appointment-statuses-t344062/VB/CustomStatusSample/AppointmentTemplates/HorizontalAppointment.ascx.vb#L68

Else
    Dim width As Integer = Convert.ToInt32(Container.AppointmentViewInfo.Appointment.Duration.TotalSeconds / Container.AppointmentViewInfo.Interval.Duration.TotalSeconds * 100)
    Dim fromStart As TimeSpan = Container.AppointmentViewInfo.Appointment.Start.Subtract(Container.AppointmentViewInfo.Interval.Start)

how-to-draw-a-horizontal-line-indicating-current-time-e2469/VB/HorzLineIndicator/Form1.vb#L41

Dim nowOffset As TimeSpan = now.TimeOfDay - interval.Start.TimeOfDay
Dim offsetRatio As Single = nowOffset.Ticks / CSng(interval.Duration.Ticks)
nowRect.Y += CInt(Fix(rect.Height * offsetRatio))

how-to-change-the-scrolling-behavior-on-mouse-wheel-over-the-scheduler-control-e2279/VB/ChangeScrollValue/Form1.vb#L23

Dim ti As New TimeInterval(schedulerControl1.ActiveView.SelectedInterval.Start.Date, topRowTime)
If (e.Delta > 0 AndAlso ti.Duration.TotalSeconds = 0) OrElse (e.Delta < 0 AndAlso ti.Duration.TotalHours = 24) Then
    Return

how-to-implement-precise-drag-and-drop-and-resizing-of-appointments-in-day-work-week-view-e4497/VB/OneMinuteDragDrop/Handlers/SchedulerMoveEventHandler.vb#L51

    Dim percent As Double = If(TimeCellViewInfo.Bounds.Height <> 0, CDbl(MousePosition.Y - TimeCellViewInfo.Bounds.Y) / CDbl(TimeCellViewInfo.Bounds.Height), 0)
    Return TimeSpan.FromMinutes(TimeCellViewInfo.Interval.Duration.TotalMinutes * percent)
End Function

how-to-resize-an-appointment-without-snapping-it-to-time-cells-e2341/VB/WindowsApplication1/Form1.vb#L106

Dim perc As Double = CDbl(mousePosition_Renamed.Y - shi.ViewInfo.Bounds.Y) / CDbl(shi.ViewInfo.Bounds.Height)
Dim timetoAdd As TimeSpan = TimeSpan.FromMinutes(e.HitInterval.Duration.TotalMinutes * perc)