Currently, you can change the size by setting the Width or Height property (based on the header's orientation) of the corresponding GroupHeader element. However, this change works only partially because of the built-in UI virtualization support. Make this work in all expected cases or introduce another API that will allow to change the size of the groups.

When dragging the icon next to the browser's address, it cannot be dropped inside the RadScheduleView control.

The virtualization logic of the group headers expects equal sizes, in order to improve the performance with a lot of appointments. Currently, we do not have an option to restrict or specify a maximum size (width or height depending on the orientation of the view definition).

ScheduleView uses IsGroupHeadersVirtualizationEnabled True.
Special Slots are added for every row.
Resizing the ScheduleView plus scrcollign can lead to doubly-rendered slots or missing slots in many rows.

Currently, if you add an appointment that is partially in two days (lets say, start=16 Jan 2024 23:00:00; end=17 Jan 2024 13:00:00), two AppointmentItem containers are created so that the appointment continues drawing on the next day. This is the expected behavior and it brings clear visualization of the corresponding event.

In some scenarios, the user may not want to see the second AppointmentItem. For example, if the day is defined to be more than 24 hours (via the DayStart/EndTime of the DayViewDefinition). In that case, the day group may be enough to show the full appointment, so the user may not want to see the second AppointmentItem in the next day.

Add a mechanism that allows you cancel the creation of the second AppointmentItem. This could be a property that tells if the continued AppointmentItem should be created, or a method override, or a filter (like the OccurrenceFilter or AppointmentFilter).

Add support for displaying the full length of an appointment when its length is spread across multiple days.

Available in LIB version 2016.2.530, it will be also available in the 2016 R2 SP1.

You can't set monthly recurrence pattern for more than 12 months, it is automatically reset to 12.

Available in LIB version 2015.3.1123, it will also be available in the 2016 Q1 release.

When the appointment is in the AllDayArea and it ends at the CurrentDate and the DayStartTime and DayEndTime are set, the arrow for continuance is still shown.

When we implement the override CanResize method, it would be interesting to change the cursor if the CanResize method return false. Actually if the method return false, the cursor remain a resize cursor but it not reflecting the reality.

Available in the 2016 Q1 Release: Added ResizeCursor property of the AppointmentItem and ScheduleViewDragDropBehavior in order to be able to change the resize cursor initially as well as during the resize operation).

Render the TimeRuler of the two specific days during the year in DayViewDefinition in the following way:

When setting back the clock:

00:00
01:00
02:00
(02:00)
03:00
04:00
...

And when setting it forward it would be:

00:00
01:00
03:00
04:00
...

In WeekView, when ShowWeekGroupHeaders is set, templating the GroupHeaders with GroupHeaderContentTemplateSelector lead to a rendering issue (see attached files).

In case I forgot something, here is my GroupHeaderContentTemplateSelector definition : 

    <svcore:GroupHeaderContentTemplateSelector x:Key="_GroupHeaderContentTemplateSelectorKey">
      <svcore:GroupHeaderContentTemplateSelector.HorizontalTemplate>
        <DataTemplate>
          <ContentPresenter MinHeight="16" Margin="4" Content="{Binding FormattedName, Converter={StaticResource UpperCaseStringConverter}}"/>
        </DataTemplate>
      </svcore:GroupHeaderContentTemplateSelector.HorizontalTemplate>
      <svcore:GroupHeaderContentTemplateSelector.VerticalTemplate>
        <DataTemplate>
          <ContentPresenter Margin="4" MinHeight="16" VerticalAlignment="Top" Content="{Binding FormattedName, Converter={StaticResource UpperCaseStringConverter}}">
            <ContentPresenter.LayoutTransform>
              <RotateTransform Angle="-90"/>
            </ContentPresenter.LayoutTransform>
          </ContentPresenter>
        </DataTemplate>
      </svcore:GroupHeaderContentTemplateSelector.VerticalTemplate>
      <svcore:GroupHeaderContentTemplateSelector.HorizontalResourceTemplate>
        <DataTemplate>
          <Border Background="{Binding Name.DBResource.Color, Converter={StaticResource _SharedStringColorToSolidColorBrushConverterKey}}" Height="60" Margin="2">
            <StackPanel Orientation="Vertical" Margin="8">
              <TextBlock Foreground="{Binding Name.DBResource.Color, Converter={StaticResource _SharedBackgroundStringColorToForegroundConverterKey}}" FontSize="16" Margin="0" Text="{Binding Name.DisplayName}" />
              <TextBlock Foreground="{Binding Name.DBResource.Color, Converter={StaticResource _SharedBackgroundStringColorToForegroundConverterKey}}" FontSize="12" Text="{Binding Name.DBResource.Code}" />
            </StackPanel>
          </Border>
        </DataTemplate>
      </svcore:GroupHeaderContentTemplateSelector.HorizontalResourceTemplate>
      <svcore:GroupHeaderContentTemplateSelector.VerticalResourceTemplate>
        <DataTemplate>
          <Border Background="{Binding Name.DBResource.Color, Converter={StaticResource _SharedStringColorToSolidColorBrushConverterKey}}" Width="140" Margin="2">
            <StackPanel Margin="8">
              <TextBlock Foreground="{Binding Name.DBResource.Color, Converter={StaticResource _SharedBackgroundStringColorToForegroundConverterKey}}" FontSize="16" Margin="-2 3 0 5"  Text="{Binding Name.DisplayName}" />
              <TextBlock Foreground="{Binding Name.DBResource.Color, Converter={StaticResource _SharedBackgroundStringColorToForegroundConverterKey}}" FontSize="12" Text="{Binding Name.DBResource.Code}" />
            </StackPanel>
          </Border>
        </DataTemplate>
      </svcore:GroupHeaderContentTemplateSelector.VerticalResourceTemplate>
    </svcore:GroupHeaderContentTemplateSelector>

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

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>