telerik RadScheduleView using MVVM and Database

[Hussein]

I Want to use telerik RadScheduleView control to build Calendar using WPF and MVVM Framework and Storing appointments data (subject, body, Start, End, ...) in Database (SQL Server). The Problem is, i bult AppointmentModel Class that inherits from Appointment Class and used autmapper to map data from DTO object to AppointmentModel but i receive mapping error despite ignoring such properties. Please let me know if this structure is right and if so, what is the problem