My current specific situation is that I want to use DataContractSerializer Class in a library supporting .NETStandard1.3. I am unable to reference it in the library. The document gives me an impression that it is a part of .Net Standard Library. Could you anyone offer a tip on how to determine if a class is supported by .Net Standard Library?
The first version supporting that is .NET Standard 2.0.
You can search at apisof to find out what frameworks contain an API.