Field is member of a type which is serializable but is of type which is not serializable

Question

I\'m developing a C# library with .NET Framework 4.7.

I want to convert the class ProductionOrderXmlFile into a XML file:

[Serializable]         


        

Answer 1

Lose the [Serializable]. Just throw it away - all of them. XmlSerializer doesn't care about it, and you don't need it. It isn't helping you, and is causing this false-positive warning.

[Serializable] relates essentially just to BinaryFormatter, which usually isn't a good choice.