When adding a RadCalendar with Day ViewMode in a TabView and switching tabs, null ref exception is thrown. 

Workaround: Set TabView.IsContentPreserved to True 

Currently there are areas in the MultiDayView that cannot be styled using the background color.  Provide an option to set a background color to the entire the MultiDayView:

when setting a TimeLineBackgroundColor to MultiDayView,  it is not respected on iOS. https://docs.telerik.com/devtools/xamarin/controls/calendar/images/calendar_scheduling_timeline.png The image in the middle is on iOS. The timeline background color is not applied

appointments show wrong time in different time zones due to daylight time changes.

The issue can be reproduced in scenarios:

- For US time zone 14th of march: If I click an empty slot, I have a popup that tells the time that is clicked. I click on the 9 AM slot and it says I'm clicking on "10:00". This only happens on 3/14/2021

- For European countries time zone: on 28th or march 2021 when is the daylight saving time

I want to change the button style, icon, etc. Provide an option to style the add appointment button.

Add appointments indicators in the date area of the multi day view, similar to week, day, month view modes. 

While in DayView (or any other appropriate view), allow for appointments to be draggable to another time slot for rescheduling. 

when using DayViewSettings and applying AppointmentTemplate, the template is not applied, the default one is applied. 

Workaround: apply AppointmentTemeplate to MultiDayViewSettings for UWP.

When changing the device orientation to a landscape mode, the all-day timeline cell does not resize as expected. The all day text moves the the date cell.

MaxCount in CalendarAppointmentsStyle does not work when DisplayMode is set to anything but Shape.

white/dark space is shown on the top of the agenda view. This space hovers some of the vents and dates from the agenda. 
You need to scroll through the agenda and the white/dark space disappears. 

Provide a new view similar to Day/MultiDay View with horizontal timeline - in this way it would be easier to accommodate more appointments for a certain timeslot. 

This timeline would be scrollable vertically to fit as many calendar events as needed, and horizontally to fit all time frames. 

Provide a way to remove the appointment time display in Calendar AgendaView both on Android & iOS - on iOS there is a separate column for appointments' time that should be removed.

When the Calendar is in DayView and there is a DayViewStyle applied with a AllDayAreaBackgroundColor setting, the color is not applied for the Today Date ( when the Calendar Date is DateTime.Today), for other dates the all-day area background is properly set.

In languages with noun declension like czech correct form is "leden 2022", displayed is "ledna 2022"

Provide events raised when a new appointment is created and when an existing appointment is updated/deleted. 

If you use DayView and define MinDate and MaxDate with such values that the interval between them is less than a week, the top week area with the days cannot be scrolled.

Appointment reminder to notify the user when scheduled time reaches.

We are facing issue in Android in day view- Radcalender, if we have appointments at the same time view is getting overlapping each-other, some appointments are getting hidden.