C# serialize a class without a parameterless constructor

Question

I\'m implementing a factory pattern for 3 different cryptography classes. The factory will determine which one to create and then get a serialized instance of the correct cl

Answer 1

Any Serializer Class need a parameterless constructor because, while deserializing it create an empty new instance, then it copies every public property taken from seialized data.

You can easily make the constructor private, if you want to avoid to create it without parameters.

EX:

public class PgpPublicKey
{
    public PgpPublicKey(PublicKeyAlgorithmTag algorithm, AsymmetricKeyParameter pubKey, DateTime time);

    private PgpPublicKey();
    // cut other methods
}