What does the Changed event do?

[mrakgr]

I am wondering what it triggers on.

[zHaytam]

Changed event triggers whenever the UI needs to update (e.g. Selected property changed, Size changed, Position changed, ...).

In the Diagram, it also triggers when you add/remove nodes/links/groups, etc...

It's meant for Blazor to know when to call StateHasChanged to update the UI

[mrakgr]

I see, thanks.