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This behavior occurs because RadScheduler
does a lot of internal operations which throw CollectionChanged
action. This causes the Update
operation of the table adapter to be called numerous times, which causes duplications. To prevent this behavior I would recommend to update the database on any action except Batch
sender, Telerik.WinControls.Data.NotifyCollectionChangedEventArgs e)
(e.Action != Telerik.WinControls.Data.NotifyCollectionChangedAction.Batch)
I hope this helps. Let me know If there is anything else I can do for you.
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