IDataContractSurrogate.GetDeserializedObject(Object, Type) Method
Definition
Important
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During deserialization, returns an object that is a substitute for the specified object.
public:
System::Object ^ GetDeserializedObject(System::Object ^ obj, Type ^ targetType);
public object GetDeserializedObject (object obj, Type targetType);
abstract member GetDeserializedObject : obj * Type -> obj
Public Function GetDeserializedObject (obj As Object, targetType As Type) As Object
Parameters
- obj
- Object
The deserialized object to be substituted.
Returns
The substituted deserialized object. This object must be of a type that is serializable by the DataContractSerializer. For example, it must be marked with the DataContractAttribute attribute or other mechanisms that the serializer recognizes.
Examples
The following example shows an implementation of the GetDeserializedObject method.
public object GetDeserializedObject(Object obj , Type targetType)
{
Console.WriteLine("GetDeserializedObject invoked");
// This method is called on deserialization.
// If PersonSurrogated is being deserialized...
if (obj is PersonSurrogated)
{
//... use the XmlSerializer to do the actual deserialization.
PersonSurrogated ps = (PersonSurrogated)obj;
XmlSerializer xs = new XmlSerializer(typeof(Person));
return (Person)xs.Deserialize(new StringReader(ps.xmlData));
}
return obj;
}
Public Function GetDeserializedObject(ByVal obj As Object, _
ByVal targetType As Type) As Object Implements _
IDataContractSurrogate.GetDeserializedObject
Console.WriteLine("GetDeserializedObject invoked")
' This method is called on deserialization.
' If PersonSurrogated is being deserialized...
If TypeOf obj Is PersonSurrogated Then
Console.WriteLine(vbTab & "returning PersonSurrogated")
'... use the XmlSerializer to do the actual deserialization.
Dim ps As PersonSurrogated = CType(obj, PersonSurrogated)
Dim xs As New XmlSerializer(GetType(Person))
Return CType(xs.Deserialize(New StringReader(ps.xmlData)), Person)
End If
Return obj
End Function
Remarks
In a simple implementation, use an if…then…else control structure to test whether the obj
value is of the surrogated type. If so, transform it as necessary and return the substituted object. The substituted object can be a new instance or the same obj
instance.
Applies to
.NET
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