We encourage our customers to use and extend the services
exposed by the RadDiagram. This is why your approach is correct and recommended.
Also, you can consider checking (or clearing) the SelectedConnections
Pavel R. Pavlov
Check out Telerik Analytics, the service which allows developers to discover app usage patterns, analyze user data, log exceptions, solve problems and profile application performance at run time. Watch the videos
and start improving your app based on facts, not hunches.