Question

I have the following class:

public class SomeClass
{
   public double SomeValue {get;set;}
}

I need to serialize it by XmlSerializer but I need to multiply the value by 10 during serialization and divide it by 10 during deserialization. Is there any way to implement this custom logic?

Answer 1

This might be a bit hacky, but involves not serialising your main property, but providing a dummy property for the purposes of serialization that gets/sets the backing field for your main propery appropriately.

public class SomeClass 
{ 
   private double _someValue;

   [XmlIgnore()]
   public double SomeValue {
     get { return _someValue; }
     set {_someValue = value;}
   } 

   [XmlElement("SomeValue")]
   public double SomeValueSerialised
   {
      get { return _someValue * 10; }
      set { _someValue = value/10; }
   }
} 

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Edit: Would note, the implementation of IXmlSerializable is probably a cleaner way to do this, but it really depends on the number of fields on your class and how lazy you’re feeling…