XmlSerializer 不复制嵌套类值

Question

我正在使用 XmlSerializer 来 DeepCopy 一个对象，但不知何故它没有复制嵌套属性。

<TestClass()>
Public Class ObjectClonerTest
    ReadOnly _target As IObjectCloner = New ObjectCloner()

    <TestMethod()>
    Public Sub DeepCopy_ComplexSourceObject_NestedObjectCopied()
        Dim source As New SerialisableComplexGenericParameterHelper()
        source.Data() = 1
        source.ComplexValue.Data() = 2

        Dim actual = _target.DeepCopy(source)

        Assert.AreEqual(1, actual.Data())
        Assert.AreEqual(2, actual.ComplexValue.Data())
    End Sub

    Public Class SerialisableComplexGenericParameterHelper
        Public Property Data() As Integer
        Public ReadOnly ComplexValue As New SerialisableGenericParameterHelper()
    End Class

    Public Class SerialisableGenericParameterHelper
        Public Property Data() As Integer
    End Class

End Class

复制功能：

Public Function DeepCopy(Of T)(ByVal pSource As T) As T Implements IObjectCloner.DeepCopy
    Using memoryStream As New MemoryStream()
        Dim binaryFormatter As New XmlSerializer(GetType(T))

        binaryFormatter.Serialize(memoryStream, pSource)

        memoryStream.Position() = 0

        Return DirectCast(binaryFormatter.Deserialize(memoryStream), T)
    End Using
End Function

Answer 1

XmlSerializer 不序列化 ReadOnly 字段。删除 ReadOnly 解决了这个问题。

Answer 2

ComplexValue 声明为：

Public ReadOnly ComplexValue As New SerialisableGenericParameterHelper()

这不是一个属性 - 它只是一个字段。我认为解决此问题应该对其进行排序。