C# FAQ: Does CSharp have its own class library

Microsoft .NET Framework, ASP.NET, Visual C# (CSharp, C Sharp, C-Sharp) Developer Training, Visual Studio

Does C# have its own class library?

No. The .NET Framework has a comprehensive class library called the .NET Framework Class Library and Base Class Library—most of which is directly available to C# developers. So, C# does not need a private class library separate from the .NET Framework.