This repository contains a WPF application that shows how to deal with unhnadled exceptions on global level. The GlobalExceptionHandlerBase class and all relevant events are explained in detail in this blog post: https://thecolorofcode.com/2019/04/11/net-wpf-global-exception-handler/
The WindowExceptionHandler and the ExceptionWindow are explainend in the follow up blog post: https://thecolorofcode.com/2019/08/11/how-to-show-an-unhandled-exception-window-in-wpf/