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What is the CTS, and how does it relate to the CLS?

April 26, 2017CLS CTS relate

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What is the CTS, and how does it relate to the CLS?

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CTS = Common Type System. This is the full range of types that the .NET runtime understands. Not all .NET languages support all the types in the CTS. CLS = Common Language Specification. This is a subset of the CTS which all .NET languages are expected to support. The idea is that any program which uses CLS-compliant types can interoperate with any .NET program written in any language. This interop is very fine-grained – for example a VB.NET class can inherit from a C# class.