When you build a custom section (or tree) in the backend, and have a delete action on your nodes, you don't want the right-hand frame to stay on the deleted object after a delete. The user may be tempted to click save, and unless you're prepared for that, things will go sideways.

So, you want to return to your dashboard (or the default - empty - page) after deleting the node.

Umbraco itself doesn't handle this in all places, but after diving deep into the umbraco javascript source, I found a hack that works.

In your BaseTree implementation, in the RenderJS override, add this javascript snippet:

function toxicOnDeleted(EV)
{
    UmbClientMgr.appActions().openDashboard('toxic');
}
UmbClientMgr.appActions()
    .addEventHandler('nodeDeleted', function(E) { toxicOnDeleted(E); } );

I have several trees in my section and i only run this in ONE of them (it will fire for any node in any tree in the section).

I'm not entirely sure if I should find some way to unregister the eventhandler (or protect it from being registered more than once), but in any case, it works for now.

Any other solutions - or additional thoughts - out there?

EDIT: I tried to figure out a way to see which node had been deleted, but ran out of time. It seems that the event argument doesn't contain anything useful, but the node id or alias may be available elsewhere. If anyone has any intel on this, please let me know.