UnreferencedObjectEventArgs.UnreferencedObject プロパティ

.NET Framework クラス ライブラリ リファレンス

UnreferencedObjectEventArgs.UnreferencedObject プロパティ

逆シリアル化された、未参照のオブジェクトを取得します。

名前空間: System.Xml.Serialization
アセンブリ: System.Xml (system.xml.dll 内)
構文

Visual Basic (宣言)

Public ReadOnly Property
 UnreferencedObject As Object

Visual Basic (使用法)

Dim instance As UnreferencedObjectEventArgs
Dim value As Object

value = instance.UnreferencedObject

C#

public Object UnreferencedObject { get; }

C++

public:
property Object^ UnreferencedObject {
    Object^ get ();
}

J#

/** @property */
public Object get_UnreferencedObject ()

JScript

public function get UnreferencedObject
 () : Object

プロパティ値
逆シリアル化された、未参照のオブジェクト。

解説

UnreferencedObject は、そのプロパティを調べる必要がある場合には、既知の型にキャストできます。

UnreferencedObject プロパティの詳細については、UnreferencedObject イベントのトピックを参照してください。

使用例

UnreferencedObjectEventHandler を XmlSerializer に追加する例を次に示します。イベントは、Serializer_UnreferencedObject メソッドによって処理されます。このサンプル コードを実行するには、UnrefObj.xml という名前のファイルに、次の XML を切り取って貼り付けます。

 <wrapper>
   <Group xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" n1:GroupName=".NET" xmlns:n1="http://www.cpandl.com">
    </Group>
 <Vehicle n1:type="Vehicle" xmlns:n1="http://www.w3.org/2001/XMLSchema-instance">
     <licenseNumber xmlns:q1="http://www.w3.org/2001/XMLSchema" n1:type="q1:string">ABCD</licenseNumber>
   </Vehicle>
 <Vehicle n1:type="Vehicle" xmlns:n1="http://www.w3.org/2001/XMLSchema-instance">
     <licenseNumber xmlns:q1="http://www.w3.org/2001/XMLSchema" n1:type="q1:string">1234</licenseNumber>
   </Vehicle>
 </wrapper>

Visual Basic

Imports System
Imports System.IO
Imports System.Text
Imports System.Xml
Imports System.Xml.Serialization
Imports System.Xml.Schema

' You must use the SoapIncludeAttribute to inform the XmlSerializer
' that the Vehicle type should be recognized when deserializing.
<SoapInclude(GetType(Vehicle))> _
Public Class Group
    Public GroupName As String
 
   public GroupVehicle As Vehicle 
End Class

Public Class Vehicle
   Public licenseNumber As String
 
End Class

 
Public Class Run
   Shared Sub Main()
      Dim test As Run = new
 Run()
      test.DeserializeObject("UnrefObj.xml")
   End Sub
   
   Public Sub DeserializeObject(filename As
 String)
      ' Create an instance of the XmlSerializer class.
      Dim myMapping As XmlTypeMapping = _
      (new SoapReflectionImporter().ImportTypeMapping _
      (GetType(Group)))
      Dim mySerializer As XmlSerializer = 
 _
      new XmlSerializer(myMapping)

      AddHandler mySerializer.UnreferencedObject, _
      AddressOf Serializer_UnreferencedObject

      ' Reading the file requires an  XmlTextReader.
      Dim reader As XmlTextReader = _
      new XmlTextReader(filename)
      reader.ReadStartElement()

      ' Deserialize and cast the object.
      Dim myGroup As Group  
      myGroup = CType( mySerializer.Deserialize(reader), Group)
      reader.ReadEndElement()
      reader.Close()
   End Sub
   
   Private Sub Serializer_UnreferencedObject
 _
   (sender As object , e As
 UnreferencedObjectEventArgs)
      Console.WriteLine("UnreferencedObject:")
      Console.WriteLine("ID: " + e.UnreferencedId)
      Console.WriteLine("UnreferencedObject: " + e.UnreferencedObject)
      Dim myVehicle As Vehicle = CType(e.UnreferencedObject,
 Vehicle)
      Console.WriteLine("License: " + myVehicle.licenseNumber)
       End Sub
 End Class
 
' The XML document should contain this information:

'<wrapper>

'  <Group xmlns:xsi="http:'www.w3.org/2001/XMLSchema-instance"
 
'xmlns:xsd="http:'www.w3.org/2001/XMLSchema" id="id1"
 
'n1:GroupName=".NET" xmlns:n1="http:'www.cpandl.com">
'   </Group>

'<Vehicle id="id2" n1:type="Vehicle" 
'xmlns:n1="http:'www.w3.org/2001/XMLSchema-instance">
'    <licenseNumber xmlns:q1="http:'www.w3.org/2001/XMLSchema"
 
'n1:type="q1:string">ABCD</licenseNumber>
'  </Vehicle>

'<Vehicle id="id3" n1:type="Vehicle" 
'xmlns:n1="http:'www.w3.org/2001/XMLSchema-instance">
'    <licenseNumber xmlns:q1="http:'www.w3.org/2001/XMLSchema"
 
'n1:type="q1:string">1234</licenseNumber>
'  </Vehicle>

'</wrapper>

C#

using System;
using System.IO;
using System.Text;
using System.Xml;
using System.Xml.Serialization;
using System.Xml.Schema;

// You must use the SoapIncludeAttribute to inform the XmlSerializer
// that the Vehicle type should be recognized when deserializing.
[SoapInclude(typeof(Vehicle))]
public class Group
{
   public string GroupName;
   public Vehicle GroupVehicle;
}
 [SoapInclude(typeof(Vehicle))]
public class Vehicle
{
   public string licenseNumber;
}

public class Run
{
   public static void Main()
   {
      Run test = new Run();
      test.DeserializeObject("UnrefObj.xml");
   }
   
   public void DeserializeObject(string
 filename)
   {
      // Create an instance of the XmlSerializer class.
      XmlTypeMapping myMapping = 
      (new SoapReflectionImporter().ImportTypeMapping(
      typeof(Group)));
      XmlSerializer mySerializer =  
      new XmlSerializer(myMapping);
 
      mySerializer.UnreferencedObject += 
      new UnreferencedObjectEventHandler
      (Serializer_UnreferencedObject);

      // Reading the file requires an  XmlTextReader.
      XmlTextReader reader= 
      new XmlTextReader(filename);
      reader.ReadStartElement();

      // Deserialize and cast the object.
      Group myGroup; 
      myGroup = (Group) mySerializer.Deserialize(reader);
      reader.ReadEndElement();
      reader.Close();
   }

   private void Serializer_UnreferencedObject
   (object sender, UnreferencedObjectEventArgs e){
      Console.WriteLine("UnreferencedObject:");
      Console.WriteLine("ID: " + e.UnreferencedId);
      Console.WriteLine("UnreferencedObject: " + e.UnreferencedObject);
      Vehicle myVehicle = (Vehicle) e.UnreferencedObject;
      Console.WriteLine("License: " + myVehicle.licenseNumber);
   }
}

// The file named "UnrefObj.xml" should contain this XML:

// <wrapper>

//  <Group xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 
//xmlns:xsd="http://www.w3.org/2001/XMLSchema" id="id1"
 
//n1:GroupName=".NET" xmlns:n1="http://www.cpandl.com">
//   </Group>

//<Vehicle id="id2" n1:type="Vehicle" 
//xmlns:n1="http://www.w3.org/2001/XMLSchema-instance">
//   <licenseNumber xmlns:q1="http://www.w3.org/2001/XMLSchema"
 
//n1:type="q1:string">ABCD</licenseNumber>
//   </Vehicle>

//<Vehicle id="id3" n1:type="Vehicle" 
//xmlns:n1="http://www.w3.org/2001/XMLSchema-instance">
//    <licenseNumber xmlns:q1="http://www.w3.org/2001/XMLSchema"
 
//n1:type="q1:string">1234</licenseNumber>
//  </Vehicle>

//</wrapper>

C++

#using <System.Xml.dll>
#using <System.dll>

using namespace System;
using namespace System::IO;
using namespace System::Text;
using namespace System::Xml;
using namespace System::Xml::Serialization;
using namespace System::Xml::Schema;

ref class Vehicle;

[SoapInclude(Vehicle::typeid)]
public ref class Vehicle
{
public:
   String^ licenseNumber;
};


// You must use the SoapIncludeAttribute to inform the XmlSerializer
// that the Vehicle type should be recognized when deserializing.

[SoapInclude(Vehicle::typeid)]
public ref class Group
{
public:
   String^ GroupName;
   Vehicle^ GroupVehicle;
};

public ref class Run
{
public:
   void DeserializeObject( String^ filename )
   {
      // Create an instance of the XmlSerializer class.
      XmlTypeMapping^ myMapping = ((gcnew SoapReflectionImporter)->ImportTypeMapping(
 Group::typeid ));
      XmlSerializer^ mySerializer = gcnew XmlSerializer( myMapping );
      mySerializer->UnreferencedObject += gcnew UnreferencedObjectEventHandler(
 this, &Run::Serializer_UnreferencedObject );
      
      // Reading the file requires an  XmlTextReader.
      XmlTextReader^ reader = gcnew XmlTextReader( filename );
      reader->ReadStartElement();
      
      // Deserialize and cast the object.
      Group^ myGroup;
      myGroup = dynamic_cast<Group^>(mySerializer->Deserialize( reader ));
      reader->ReadEndElement();
      reader->Close();
   }

private:
   void Serializer_UnreferencedObject( Object^ /*sender*/, UnreferencedObjectEventArgs^
 e )
   {
      Console::WriteLine( "UnreferencedObject:" );
      Console::WriteLine( "ID: {0}", e->UnreferencedId );
      Console::WriteLine( "UnreferencedObject: {0}", e->UnreferencedObject
 );
      Vehicle^ myVehicle = dynamic_cast<Vehicle^>(e->UnreferencedObject);
      Console::WriteLine( "License: {0}", myVehicle->licenseNumber );
   }
};

int main()
{
   Run^ test = gcnew Run;
   test->DeserializeObject( "UnrefObj.xml" );
}

// The file named S"UnrefObj.xml" should contain this XML:
// <wrapper>
//  <Group xmlns:xsi=S"http://www.w3.org/2001/XMLSchema-instance"
 
//xmlns:xsd=S"http://www.w3.org/2001/XMLSchema" id=S"id1"
 
//n1:GroupName=S".NET" xmlns:n1=S"http://www.cpandl.com">
//   </Group>
//<Vehicle id=S"id2" n1:type=S"Vehicle" 
//xmlns:n1=S"http://www.w3.org/2001/XMLSchema-instance">
//   <licenseNumber xmlns:q1=S"http://www.w3.org/2001/XMLSchema"
 
//n1:type=S"q1:String*">ABCD</licenseNumber>
//   </Vehicle>
//<Vehicle id=S"id3" n1:type=S"Vehicle" 
//xmlns:n1=S"http://www.w3.org/2001/XMLSchema-instance">
//    <licenseNumber xmlns:q1=S"http://www.w3.org/2001/XMLSchema"
 
//n1:type=S"q1:String*">1234</licenseNumber>
//  </Vehicle>
//</wrapper>

J#

import System.*;
import System.IO.*;
import System.Text.*;
import System.Xml.*;
import System.Xml.Serialization.*;
import System.Xml.Schema.*;
// You must use the SoapIncludeAttribute to inform the XmlSerializer
// that the Vehicle type should be recognized when deserializing.
/** @attribute SoapInclude(Vehicle.class)
 */
public class Group
{
    public String groupName;
    public Vehicle groupVehicle;
} //Group

/** @attribute SoapInclude(Vehicle.class)
 */
public class Vehicle
{
    public String licenseNumber;
} //Vehicle

public class Run
{
    public static void main(String[]
 args)
    {
        Run test = new Run();
        test.DeserializeObject("UnrefObj.xml");
    } //main

    public void DeserializeObject(String fileName)
    {
        // Create an instance of the XmlSerializer class.
        XmlTypeMapping myMapping = (new SoapReflectionImporter()).
            ImportTypeMapping(Group.class.ToType());

        XmlSerializer mySerializer = new XmlSerializer(myMapping);

        mySerializer.add_UnreferencedObject(new UnreferencedObjectEventHandler(
            Serializer_UnreferencedObject));
        // Reading the file requires an  XmlTextReader.
        XmlTextReader reader = new XmlTextReader(fileName);
        reader.ReadStartElement();
        // Deserialize and cast the object.
        Group myGroup;
        myGroup = (Group)mySerializer.Deserialize(reader);
        reader.ReadEndElement();
        reader.Close();
    } //DeserializeObject

    private void Serializer_UnreferencedObject(Object
 sender,
        UnreferencedObjectEventArgs e)
    {
        Console.WriteLine("UnreferencedObject:");
        Console.WriteLine("ID: " + e.get_UnreferencedId());
        Console.WriteLine("UnreferencedObject: " + e.get_UnreferencedObject());
        Vehicle myVehicle = (Vehicle)e.get_UnreferencedObject();
        Console.WriteLine("License: " + myVehicle.licenseNumber);
    } //Serializer_UnreferencedObject
} //Run

// The file named "UnrefObj.xml" should contain this XML:
// <wrapper>
//  <Group xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 
//xmlns:xsd="http://www.w3.org/2001/XMLSchema" id="id1"
 
//n1:groupName=".NET" xmlns:n1="http://www.cpandl.com">
//   </Group>
//<Vehicle id="id2" n1:type="Vehicle" 
//xmlns:n1="http://www.w3.org/2001/XMLSchema-instance">
//   <licenseNumber xmlns:q1="http://www.w3.org/2001/XMLSchema"
 
//n1:type="q1:string">ABCD</licenseNumber>
//   </Vehicle>
//<Vehicle id="id3" n1:type="Vehicle" 
//xmlns:n1="http://www.w3.org/2001/XMLSchema-instance">
//    <licenseNumber xmlns:q1="http://www.w3.org/2001/XMLSchema"
 
//n1:type="q1:string">1234</licenseNumber>
//  </Vehicle>
//</wrapper>

プラットフォーム

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報

.NET Framework
サポート対象 : 2.0、1.1、1.0
.NET Compact Framework
サポート対象 : 2.0

参照

関連項目
UnreferencedObjectEventArgs クラス
UnreferencedObjectEventArgs メンバ
System.Xml.Serialization 名前空間