C＃ - XML将复杂类序列化为其原始类型

Question

Is it possible to take a complex class "A", which represents a primitive type with added information - such as valid values for that primitive , include an instance of "A" in "B", and XML serialize "B" with "A" appearing only as its primitive type?

Class A<T> {
  T obj;
  Static  ValidValue<T>[] validValues;
}

Class B {
  A<int> intVal;
  A<string> stringVal;
}

Desired output is just the primitives. The ValidValues would be used to validate the data after deserialization:

  <B>
    <A>1</A>
    <A>example</A>
  </B>

Answer 1

Have you tried to use property?

public class B {
  private A<int> intVal;
  public int IntVal{
    get{
      return intVal.obj;
    }
    set{
      intVal.obj = value;
    }
  }

  // same for stringval
}

As far as I know xmlserializer will only serialize public properties. So it should work.

I may misunderstood your requirement though.

Answer 2

This is easy to do with DataContracts .

You just need to put a [DataContract] attribute on the class, and then decorate only the fields or properties that you want to be serialised with a [DataMember] attribute. You can serialise private fields in this way.

See here for how to serialize such a decorated class .

This is opt-in, ie only the items that you decorate with [DataMember] will be serialised.

For example ( from the MSDN sample here ):

[DataContract]
public class Person
{
    // This member is serialized.
    [DataMember]
    internal string FullName;

    // This is serialized even though it is private.
    [DataMember]
    private int Age;

    // This is not serialized because the DataMemberAttribute 
    // has not been applied.
    private string MailingAddress;

    // This is not serialized, but the property is.
    private string telephoneNumberValue;

    [DataMember]
    public string TelephoneNumber
    {
        get { return telephoneNumberValue; }
        set { telephoneNumberValue = value; }
    }
}

Answer 3

You could use custom serialization to control what variables are serialized. You could then send whatever value you want to the serialized object.

See http://msdn.microsoft.com/en-us/library/ty01x675(v=vs.80).aspx