Multipetros.Validation.dll is an open source library, targeting the .net framework and combines validation functionality for greek VIES VAT IDs (AFM / ΑΦΜ), greek social IDs (AMKA) and Luhn formula based numbers.
There are 3 classes: ViesGr, SocialidGr & Luhn which provide static bool isValid(id) methods for validation checking.
NOTICE: the library’s methods check if an ID (VIES/Social ID etc.) is valid, and NOT if exists and corresponds to a natural person or a legal entity.
Distributed under the terms & conditions of the FreeBSD License.