The generated code for wxDataViewCtrl & co. appears to be wrong/inconsistent because Connect() is called on the parent rather than the controls themselves with the event sink set to the parent. This diverges from what I've seen to be the normal case with generated code.
I've tried to fix the generated C++ code since that's what I use myself. The code generated in other languages appears to have the same problem.
Fixed in wxFB 3.5.2-RC2.