CalendarData
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Shows interactive calendar with ability to create, edit and remove appointments.

The sample shows how to setup custom Appointment objects, 
show them in the C1Calendar control and interact with the C1Calendar control to create, edit or remove appointments.

End-user interaction implemented in the sample:
- double click on calendar day creates new appointment and allows to edit it in a separate page;
- double click on appointment opens appointment for editing;
- pressing 'Delete' key removes selected appointment.
