OleksandrP Packt.CS7.SharedLibraryPetryk by: OleksandrP .NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher. 1,190 total downloads last updated 2/16/2019 Latest version: 1.0.0.1 string extension packt cs7 Three extensions methods to validate a string value.