Hi!

I'm glad it helped you. Keep up the good work, if there is anything else you need to ask post it here and I will reply!

Have a nice day

Dear Gigi Dolar!

Thank you for your helping during last time.

Finally, I found solution for this work:

all the code is:

public void AfterCreateChildElements(Infragistics.Win.UIElement parent)
        {
     
            if (parent is Infragistics.Win.UltraWinSchedule.TimelineView.AppointmentUIElement)
           {
             ActivityAreaUIElement tlvControls = parent.GetAncestor(typeof(ActivityAreaUIElement)) as ActivityAreaUIElement;
             foreach (UIElement elem in tlvControls.ChildElements)
             {
                 if (elem is TimeSlotUIElement)
                 {
                     Appointment app = parent.GetContext(typeof(Appointment)) as Appointment;
                     if (((TimeSlotUIElement)elem).DateTimeRange.StartDateTime.ToString("dd/MM/yyyy") == app.StartDateTime.ToString("dd/MM/yyyy"))
                         parent.Rect=elem.Rect;
                 }
                 if (elem is ActivityGrabHandleUIElement)
                 {
                     tlvControls.ChildElements.Remove(elem);
                 }
             }  

          
            }
          
        }

Thank again.

Hello,

Yes, you are right. This is what it should do, because the TimeSchedule control is designed this way. if you want to keep the appointment in that spot, then this is not the way to go.

If you need the functionality of an appointment, then you must change the dates of the appointment each time you scroll you control, so use that event. The timeslot changes position each time you scroll the dates, it is designed to do that. You need to move the appointment when you scroll through them, so it seems that it maintains it's position. I however you not do that. I would just add some graphic object (any rectangle) and set it's position relative to the control, so it never changes. I would add the UI in the ActivityAreaUI I think, though I am not sure.

I cannot give you the exact code to this as I did not use this before. You must calculate the position of your rectangle and always be aware of all resizing events.

Hope it clears things up, at least a bit... 

Following your guide, I use this code

   public void AfterCreateChildElements(Infragistics.Win.UIElement parent) // Implements Infragistics.Win.IUIElementCreationFilter.AfterCreateChildElements
        {
     
            if (parent is Infragistics.Win.UltraWinSchedule.TimelineView.AppointmentUIElement) // it is the descendant of ColumnHeader
           {
             ActivityAreaUIElement act = parent.GetAncestor(typeof(ActivityAreaUIElement)) as ActivityAreaUIElement;
             TimeSlotUIElement tsl = act.GetDescendant(typeof(TimeSlotUIElement)) as TimeSlotUIElement;
 
             parent.Rect = tsl.Rect;// new Rectangle(tsl.Rect.X, tsl.Rect.Y, parent.Rect.Width, parent.Rect.Height);
            }
          
        }

When app run, the appointment fill the timeslotui area, but when scroll to another day in the timelineview, the appointment remain the same locaion.
my timelineview control have only one appointment per day, and that appointment does not span across multiple days
Please help.

Hi,

Yes, you are right, it is not. My mistake. 

The appointment is in the ActivityAreaUI element. To make it "fill" a TimeSlotUI, or more:

 1. you have to get the startdate end enddate of the actual Appointment and set them to you own pleasing - this solves the width problem, the AppointmentUIElement will strech according to the dates of the appointment.

2. to solve the height problem: 

 if (elem is Infragistics.Win.UltraWinSchedule.TimelineView.AppointmentUIElement)

                {

 Infragistics.Win.UltraWinSchedule.TimelineView.ActivityAreaUIElement parent =  elem.GetAncestor(typeof(Infragistics.Win.UltraWinSchedule.TimelineView. ActivityAreaUIElement));

                       elem.Rect = new Rectangle(elem.Rect.X, elem.Rect.Y, elem.Rect.Width, parent.Rect.Height);

                }

}

Now you will have your appointmentUI  as high as the owner (ActivityArea), which is as high as a timeslotUI. How wide it should strech it is up to you by setting the dates of the appointment. 

If you need to get the Appointment Element from the AppointmentUIElement, here is the code:

 if (elem is Infragistics.Win.UltraWinSchedule.TimelineView.AppointmentUIElement)

                {

                    Infragistics.Win.UltraWinSchedule.Appointment appointment = elem.GetContext(typeof(Infragistics.Win.UltraWinSchedule.Appointment)) as Infragistics.Win.UltraWinSchedule.Appointment;

}

Please test it, see if it works and get back to me.