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Serialization/Deserialization of changed entity

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  • User profile image
    ferguslogic

    I have a question regarding .net Serialization...

    Heres an example to help illustrate my question.

    What happens if I have a custom business object similar to this:

    [serializable]
    public class Customer
    {
           public CustomerName {get{}set{}
    }


    and i build serialization/deserialization code for this entity so that it can be written and read back from an xml file.
    (no problems so far..the world is round)

    Now, I decide I need an extra field in my business entity and so I change it to this...

    [serializable]
    public class Customer
    {
           public CustomerName {get{}set{}
           public CustomerPhone {get{}set{}

    }


    Now..can i still deserialize the xml file that  I created before the object was modified?

    thanks in advance!

  • User profile image
    evildictait​or

    With binary serialization, no. I don't know about XML-based serialization, but I suspect not.

  • User profile image
    stevo_

    You might be able to with the default xml serialization.. but if not, you can implement ISerializable and write your own logic for its serialization and deserialization.

  • User profile image
    JChung2006

    With WCF, you can if you implement IExtensibleDataObject.

  • User profile image
    Yggdrasil

    If I remember correctly, binary serialization in .NET 2.0 added support for [Optional] properties, so if I have a missing member in the serialized form I can ignore it, give it a default value and create the object with default values.

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