Expressing Designs in C# - Effective C# - page 162

private OtherClass otherThing;
private const int DEFAULT_VALUE = 5 ;
private int value2;
// public constructors elided.
// Private constructor used only
// by the Serialization framework.
private MyType( SerializationInfo info,
StreamingContext cntxt)
{
label = info.GetString( "label" );
otherThing = ( OtherClass )info.GetValue( "otherThing" ,
typeof ( OtherClass ));
try
{
value2 = info.GetInt32( "value2" );
}
catch ( SerializationException )
{
// Found version 1.
value2 = DEFAULT_VALUE;
}
}
[ SecurityPermissionAttribute ( SecurityAction .Demand,
SerializationFormatter = true )]
void ISerializable .GetObjectData( SerializationInfo inf,
StreamingContext cxt)
{
inf.AddValue( "label" , label);
inf.AddValue( "otherThing" , otherThing);
inf.AddValue( "value2" , value2);
}
}
The serialization stream stores each item as a key/value pair. The code gen-
erated from the attributes uses the variable name as the key for each value.
When you add the ISerializable interface, you must match the key name