Where can I find source code for .net CLR and C#?

Question

Is the source code for Microsoft .net CLR and C# open? If yes, where can I download/browse it?

Answer 1

You can have a look at the official one: Microsoft Reference Source.

You can browse the source code in Visual Studio as well, while debugging. To enable this feature, follow the steps described here: Configure Visual Studio 2013 for debugging .NET framework