Empty ReadOnly-Slot blocks all DragAndDrop

[Hendrik]

Hallo Telerik-Team,

in our application we want to display empty rows in the ScheduleView. These rows are readonly and will have a special look.
My idea was to create a special kind of Resource (SpacerResource) with a custom style. This works fine and I can add them between the other resources to insert the empty rows. I also generate a readonly SpacerSlot to which I add all the SpacerResources. A custom SpecialSlotStyleSelector is used to display the empty rows the way we want. This also works fine.

Now for the problem: If no SpacerRow is added to the resources and therefore the SpacerSlot.Resources list is empty, drag&drop of our Appointments does not work anymore. Note that the SpacerSlot is always added to the list of special slots, even when no SpacerResource instances exist. If I add a SpacerResource and "register" it in the SpacerSlot, the drag&drop works again. The ScheduleView is used in TimeLineView only.

To me this seems to be a bug. Would you please tell me if I do something wrong or if this is indeed an incorrect behavior?

The special slot is created like this:

01.public static Slot GenerateSpacerSlot(DateTime viewportStart, DateTime viewportEnd)
02. {
03.   return new Slot()
04.   {
05.    Start = viewportStart.StartOfDay(),
06.    End   = viewportEnd.EndOfDay(),
07.    IsReadOnly = true,
08.    TimeZone = TimeZoneInfo.Utc,
09.    RecurrencePattern = new RecurrencePattern(
10.        null,
11.        RecurrenceDays.EveryDay,
12.        RecurrenceFrequency.Weekly,
13.        1,
14.        null,
15.        null)
16.   };
17.}

The parameters define the current viewport displayed. StartOfDay() and EndOfDay() are custom extension methods.


Regards,

Hendrik 

[Kalin]

Hi Hendrik,

If you have Appointments placed over ReadOnly Slots - you won't be able to drag/drop and modify those Appointments at all (it is demonstrated in this demo). This a behavior intended by design. However I assume your case is different by saying the drag/drop works when the custom Slots have been added. I would like to ask you to share more details - sample code and/or screenshot would be helpful.

I'm looking forward to hearing from you.

Regards,
Kalin
Telerik