Official web site: sharpdx.org

SharpDX is an open-source project delivering the full DirectX API for .Net on all Windows platforms, allowing the development of high performance game, 2D and 3D graphics rendering as well as realtime sound application.

You can find more documentation on the Wiki

In order to compile SharpDX, you need to install Visual Studio 2015 Update 3 and check the following components:

• Programming Languages / Visual C++ / Common Tools for VS 2015
• Windows and Web Development / Universal Windows App Development Tools (ensure that Windows 10 SDK (10.0.10586) is selected)
• Windows 8.1 and Windows Phone 8.0/8.1 Tools

A collection of Samples using SharpDX exists as a separate github project.

MIT