How to point TreeMap TypeDefinition TargetTypeName to a type in different namespace

[Sergii]

I was playing around with RadTreeMap and was able to show some data. I decided to move the newly classes for data and viewmodels around the project to the suitable locations. Now my TypeDefinitions can't recognize the names I am passing in. What's the format? How to point RadTreeMap TypeDefinition's TargetTypeName to a type in different namespace? And if that type lives in another Assembly f.e?

[Sergii]

Ignore the question above. Me being stupid and renamed the underlying properties for Label and ValuePath-s. The other thing I would like to arise here is that control did not complain at all about not being able to find those properties on the target type...