IDataContractSurrogate.GetDeserializedObject(Object, Type) 方法

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

参数

返回

替换的反序列化对象。 此对象必须是可由 DataContractSerializer该对象序列化的类型。 例如，它必须使用序列化程序识别的属性或其他机制进行标记 DataContractAttribute 。

示例

以下示例演示方法的 GetDeserializedObject 实现。

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

注解

在简单实现中，使用 if...然后。。。else 控制结构，用于测试该值是否 obj 为代理项类型。 如果是，请根据需要对其进行转换并返回替换的对象。 替换的对象可以是新实例或同一 obj 实例。