Blazor UI component library based on Material Design
UI automation library for .Net
Framework for building Windows desktop applications
Console-based user interface toolkit for .NET applications
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