The DragDropState.TargetedApppointment property is not updated correctly when dropping an item from an external source. For example drag-drop an object from RadGridView control.

When an appointment is double clicked, the edit appointment dialog is shown. When the escape button is clicked, the edit appointment dialog is closed. When the above 2 actions are performed in quick succession, the appointment disappears. 

  Steps to reproduce:
  1.Open the attached solution, build and run the sample application.
    2.There are two appointments created in the view. Double click the 'Appointment2' to edit it.
    3.Select 'Room 1' from the 'Room' combo box and unselect 'Room 2'.
    4.Click OK to apply the changes.
    5.'Appointment2' is moved to 'Room 1' however it also becomes unselected as the 'Appointment1' becomes the selected one.

There is a fixed value of 16px set for the Height of the GroupHeader. Thus, when a FontSize bigger than 16px is set, the Text is cut off as the GroupHeader is not resized. The workaround is to predefine the GroupHeaderContentTemplateSelector and remove the fixed Height that is set through it. 

<telerik:GroupHeaderTemplateSelector x:Key="GroupHeaderContentTemplateSelector">
                <telerik:GroupHeaderTemplateSelector.HorizontalTemplate>
                    <DataTemplate>
                        <ContentPresenter Content="{Binding FormattedName}"  Margin="4" />
                    </DataTemplate>
                </telerik:GroupHeaderTemplateSelector.HorizontalTemplate>

                <telerik:GroupHeaderTemplateSelector.VerticalTemplate>
                    <DataTemplate> 
                            <ContentPresenter Content="{Binding FormattedName}" Margin="4" VerticalAlignment="Top">
                                <ContentPresenter.LayoutTransform>
                                    <RotateTransform Angle="-90" />
                                </ContentPresenter.LayoutTransform>
                            </ContentPresenter> 
                    </DataTemplate>
                </telerik:GroupHeaderTemplateSelector.VerticalTemplate>
 </telerik:GroupHeaderTemplateSelector>

Available in LIB version: 2017.2.515

The direction of EditAppointmentDialog, RecurrenceChoiceDialogStyle etc. is always LeftToRight even if the ScheduleView itself is RightToLeft.

Available in LIB version 2017.1.206 , it will be also available in the R1 2017 SP1 Release.

Available with LIB version 2016.3.1205, it will be also available in the 2017 R1 release.

Available in LIB version 2016.3.1107, it will be also available in the 2017 R1 release.

Here is the link to the example in the XAML SDK Repository:

https://github.com/telerik/xaml-sdk/tree/master/ScheduleView/Database

Available in LIB version 2016.1.208, it will be also available in the 2016 Q1 SP1 Release.

With the current implementation fires constantly while dragging over the ScheduleView.

Available in the R1 2017 SP1 Release.

Available in LIB version 2015.2.817, it will be also available in the 2015 Q3 Release.