Supplying XML Code Comments
For the latest documentation on Visual Studio 2017 RC, see Visual Studio 2017 RC Documentation.
You can make the comments in source code files available as IntelliSense. When you add the /doc switch to the Visual Basic, C#, or C++ compiler command line, an .xml file is generated that serves as the basis for IntelliSense documentation.
For more information about documenting code in Visual Basic, see see How to: Create XML Documentation.
For more information about documenting code in C#, see XML Documentation Comments.