RadDiagram : Conversion to MVVM

[Sherwin]

Hi Telerik Team,

Currently, I am working on the conversion from a non-MVVM program to MVVM.

Previously, I used ConnectionManipulationCompleted(Code-Behind) event trigger of RadDiagram control. Within this event trigger, I am able to know the exact connection that was being drawn from a RadDiagramShape to another RadDiagramShape.

While I am on my way to MVVM approach, I faced some problem that is that I am not able to know which is exact connection that was being drawn as ConnectionManipulationCompleted(Code-Behind) event trigger does.

Hope you can help me on this.

The sample that I am used was from http://www.telerik.com/ClientsFiles/3eaf3a91-f06c-43e5-96b3-14dfe4a472f1_Connection-MVVM-LinkViewModel.zip.

Thanks. Your prompt reply will be very much appreciated.

Regards 
Sherwin 

[Pavel R. Pavlov]

Hello Sherwin,

Thank you for providing us with detailed information about your scenario. I can see that you subscribe to the PropertyChanged event of the Link. This is the best approach to update all the properties of a Link in your View-Model. Currently, you check if the changed property is the Target. Also, you can check the Source property. By doing so you will be able to specify the exact connection that has been drawn by the user.

Please try this approach out and let me know if you have any other questions.

Regards,
Pavel R. Pavlov
Telerik