ASP.NET Core 5.0 - Framework Enum Project

I implemented a TargetFrameworkEnum on KenHaggerty.Com when ASP.NET Core 3.0 was released. With the release of NET 5 and ASP.NET Core 5.0, I decided to add a Target Framework property to projects and refactor the selection and filtering of articles by Target Framework.

I want to add new ASP.NET Core 5.0 projects side by side with ASP.NET Core 3.1 projects. After working on the implementation of a Target Framework for projects, I realized I needed to do a better job with the TargetFrameworkEnum. This project demonstrates the implementation of a Target Framework Enum with a Dropdown list to filter an in-memory database.