Console-based user interface toolkit for .NET applications
Framework for building Windows desktop applications
UI automation library for .Net
Blazor UI component library based on Material Design
Modern 3D engine and IDE written using C# and C++.
Data/Document Work Flow application
Provides common dialogs and widgets with a GUI-toolkit-agnostic layer.
Dynamic modularization framework in .net for OSGi Alliance
Apache Cayenne, Wicket, CXF, GWT, EJB examples as a framework