I would suggest that you take a look at our ScheduleView Binding to Database tutorial
and to the referenced example in our SDK Repository (https://github.com/telerik/xaml-sdk/tree/master/ScheduleView/Database/WPF_CS
). Note that the demonstrated approach is for ADO.NET Entity Framework 4.1, however you could check how the needed interfaces are implemented there.
I hope this will help get started.
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