XmlAttributes クラス
アセンブリ: System.Xml (system.xml.dll 内)


XmlAttributes の作成は、XmlSerializer がクラス インスタンスをシリアル化する既定の方法をオーバーライドするプロセスの一部です。たとえば、アクセスできないソースを持つ DLL で作成されたオブジェクトをシリアル化するとします。XmlAttributeOverrides を使用することにより、オブジェクトをシリアル化する別の方法を使用できたり、その他の制御を行うことができます。
XmlAttributes クラスのメンバは、シリアル化を制御する一連の属性クラスと直接的に対応します。たとえば、XmlText プロパティを XmlTextAttribute に設定しておく必要があります。これにより XmlSerializer に対してプロパティ値を XML テキストとしてシリアル化するよう命令して、フィールドまたはプロパティのシリアル化をオーバーライドできます。シリアル化を制御する属性の全一覧については、XmlSerializer のトピックを参照してください。
XmlAttributes クラスと共に XmlAttributeOverrides を使用する方法の詳細については、「方法 : XML ストリームの代替要素名を指定する」を参照してください。

Orchestra という名前のクラスをシリアル化する例を次に示します。この例には、Instrument オブジェクトの配列を返す Instruments という名前の単一のフィールドが含まれています。Brass という名前の 2 番目のクラスが Instrument クラスから継承されます。この例では、XmlAttributes オブジェクトを作成して Instrument フィールドをオーバーライドします。このオーバーライドにより、フィールドが Brass オブジェクトを受け入れるようにして、XmlAttributes オブジェクトを XmlAttributeOverrides クラスのインスタンスに追加します。
Imports System Imports System.IO Imports System.Xml.Serialization Imports Microsoft.VisualBasic Public Class Orchestra Public Instruments() As Instrument End Class Public Class Instrument Public Name As String End Class Public Class Brass Inherits Instrument Public IsValved As Boolean End Class Public Class Run Public Shared Sub Main() Dim test As New Run() test.SerializeObject("Override.xml") test.DeserializeObject("Override.xml") End Sub Public Sub SerializeObject(ByVal filename As String) ' Each overridden field, property, or type requires ' an XmlAttributes object. Dim attrs As New XmlAttributes() ' Create an XmlElementAttribute to override the ' field that returns Instrument objects. The overridden field ' returns Brass objects instead. Dim attr As New XmlElementAttribute() attr.ElementName = "Brass" attr.Type = GetType(Brass) ' Add the element to the collection of elements. attrs.XmlElements.Add(attr) ' Create the XmlAttributeOverrides object. Dim attrOverrides As New XmlAttributeOverrides() ' Add the type of the class that contains the overridden ' member and the XmlAttributes to override it with to the ' XmlAttributeOverrides object. attrOverrides.Add(GetType(Orchestra), "Instruments", attrs) ' Create the XmlSerializer using the XmlAttributeOverrides. Dim s As New XmlSerializer(GetType(Orchestra), attrOverrides) ' Writing the file requires a TextWriter. Dim writer As New StreamWriter(filename) ' Create the object that will be serialized. Dim band As New Orchestra() ' Create an object of the derived type. Dim i As New Brass() i.Name = "Trumpet" i.IsValved = True Dim myInstruments() As Instrument = {i} band.Instruments = myInstruments ' Serialize the object. s.Serialize(writer, band) writer.Close() End Sub Public Sub DeserializeObject(ByVal filename As String) Dim attrOverrides As New XmlAttributeOverrides() Dim attrs As New XmlAttributes() ' Create an XmlElementAttribute to override the Instrument. Dim attr As New XmlElementAttribute() attr.ElementName = "Brass" attr.Type = GetType(Brass) ' Add the element to the collection of elements. attrs.XmlElements.Add(attr) attrOverrides.Add(GetType(Orchestra), "Instruments", attrs) ' Create the XmlSerializer using the XmlAttributeOverrides. Dim s As New XmlSerializer(GetType(Orchestra), attrOverrides) Dim fs As New FileStream(filename, FileMode.Open) Dim band As Orchestra = CType(s.Deserialize(fs), Orchestra) Console.WriteLine("Brass:") ' The difference between deserializing the overridden ' XML document and serializing it is this: To read the derived ' object values, you must declare an object of the derived type ' (Brass), and cast the Instrument instance to it. Dim b As Brass Dim i As Instrument For Each i In band.Instruments b = CType(i, Brass) Console.WriteLine(b.Name + ControlChars.Cr + _ b.IsValved.ToString()) Next i End Sub End Class
using System; using System.IO; using System.Xml.Serialization; public class Orchestra { public Instrument[] Instruments; } public class Instrument { public string Name; } public class Brass:Instrument { public bool IsValved; } public class Run { public static void Main() { Run test = new Run(); test.SerializeObject("Override.xml"); test.DeserializeObject("Override.xml"); } public void SerializeObject(string filename) { /* Each overridden field, property, or type requires an XmlAttributes object. */ XmlAttributes attrs = new XmlAttributes(); /* Create an XmlElementAttribute to override the field that returns Instrument objects. The overridden field returns Brass objects instead. */ XmlElementAttribute attr = new XmlElementAttribute(); attr.ElementName = "Brass"; attr.Type = typeof(Brass); // Add the element to the collection of elements. attrs.XmlElements.Add(attr); // Create the XmlAttributeOverrides object. XmlAttributeOverrides attrOverrides = new XmlAttributeOverrides(); /* Add the type of the class that contains the overridden member and the XmlAttributes to override it with to the XmlAttributeOverrides object. */ attrOverrides.Add(typeof(Orchestra), "Instruments", attrs); // Create the XmlSerializer using the XmlAttributeOverrides. XmlSerializer s = new XmlSerializer(typeof(Orchestra), attrOverrides); // Writing the file requires a TextWriter. TextWriter writer = new StreamWriter(filename); // Create the object that will be serialized. Orchestra band = new Orchestra(); // Create an object of the derived type. Brass i = new Brass(); i.Name = "Trumpet"; i.IsValved = true; Instrument[] myInstruments = {i}; band.Instruments = myInstruments; // Serialize the object. s.Serialize(writer,band); writer.Close(); } public void DeserializeObject(string filename) { XmlAttributeOverrides attrOverrides = new XmlAttributeOverrides(); XmlAttributes attrs = new XmlAttributes(); // Create an XmlElementAttribute to override the Instrument. XmlElementAttribute attr = new XmlElementAttribute(); attr.ElementName = "Brass"; attr.Type = typeof(Brass); // Add the element to the collection of elements. attrs.XmlElements.Add(attr); attrOverrides.Add(typeof(Orchestra), "Instruments", attrs); // Create the XmlSerializer using the XmlAttributeOverrides. XmlSerializer s = new XmlSerializer(typeof(Orchestra), attrOverrides); FileStream fs = new FileStream(filename, FileMode.Open); Orchestra band = (Orchestra) s.Deserialize(fs); Console.WriteLine("Brass:"); /* The difference between deserializing the overridden XML document and serializing it is this: To read the derived object values, you must declare an object of the derived type (Brass), and cast the Instrument instance to it. */ Brass b; foreach(Instrument i in band.Instruments) { b = (Brass)i; Console.WriteLine( b.Name + "\n" + b.IsValved); } } }
#using <System.Xml.dll> #using <System.dll> using namespace System; using namespace System::IO; using namespace System::Xml::Serialization; public ref class Instrument { public: String^ Name; }; public ref class Brass: public Instrument { public: bool IsValved; }; public ref class Orchestra { public: array<Instrument^>^Instruments; }; void SerializeObject( String^ filename ) { /* Each overridden field, property, or type requires an XmlAttributes object. */ XmlAttributes^ attrs = gcnew XmlAttributes; /* Create an XmlElementAttribute to override the field that returns Instrument objects. The overridden field returns Brass objects instead. */ XmlElementAttribute^ attr = gcnew XmlElementAttribute; attr->ElementName = "Brass"; attr->Type = Brass::typeid; // Add the element to the collection of elements. attrs->XmlElements->Add( attr ); // Create the XmlAttributeOverrides object. XmlAttributeOverrides^ attrOverrides = gcnew XmlAttributeOverrides; /* Add the type of the class that contains the overridden member and the XmlAttributes to override it with to the XmlAttributeOverrides object. */ attrOverrides->Add( Orchestra::typeid, "Instruments", attrs ); // Create the XmlSerializer using the XmlAttributeOverrides. XmlSerializer^ s = gcnew XmlSerializer( Orchestra::typeid,attrOverrides ); // Writing the file requires a TextWriter. TextWriter^ writer = gcnew StreamWriter( filename ); // Create the object that will be serialized. Orchestra^ band = gcnew Orchestra; // Create an object of the derived type. Brass^ i = gcnew Brass; i->Name = "Trumpet"; i->IsValved = true; array<Instrument^>^myInstruments = {i}; band->Instruments = myInstruments; // Serialize the object. s->Serialize( writer, band ); writer->Close(); } void DeserializeObject( String^ filename ) { XmlAttributeOverrides^ attrOverrides = gcnew XmlAttributeOverrides; XmlAttributes^ attrs = gcnew XmlAttributes; // Create an XmlElementAttribute to override the Instrument. XmlElementAttribute^ attr = gcnew XmlElementAttribute; attr->ElementName = "Brass"; attr->Type = Brass::typeid; // Add the element to the collection of elements. attrs->XmlElements->Add( attr ); attrOverrides->Add( Orchestra::typeid, "Instruments", attrs ); // Create the XmlSerializer using the XmlAttributeOverrides. XmlSerializer^ s = gcnew XmlSerializer( Orchestra::typeid,attrOverrides ); FileStream^ fs = gcnew FileStream( filename,FileMode::Open ); Orchestra^ band = dynamic_cast<Orchestra^>(s->Deserialize( fs )); Console::WriteLine( "Brass:" ); /* The difference between deserializing the overridden XML document and serializing it is this: To read the derived object values, you must declare an object of the derived type (Brass), and cast the Instrument instance to it. */ Brass^ b; System::Collections::IEnumerator^ myEnum = band->Instruments->GetEnumerator(); while ( myEnum->MoveNext() ) { Instrument^ i = safe_cast<Instrument^>(myEnum->Current); b = dynamic_cast<Brass^>(i); Console::WriteLine( "{0}\n{1}", b->Name, b->IsValved ); } } int main() { SerializeObject( "Override.xml" ); DeserializeObject( "Override.xml" ); }
import System.*; import System.IO.*; import System.Xml.Serialization.*; public class Orchestra { public Instrument instruments[]; } //Orchestra public class Instrument { public String name; } //Instrument public class Brass extends Instrument { public boolean isValved; } //Brass public class Run { public static void main(String[] args) { Run test = new Run(); test.SerializeObject("Override.xml"); test.DeserializeObject("Override.xml"); } //main public void SerializeObject(String fileName) { /* Each overridden field, property, or type requires an XmlAttributes object. */ XmlAttributes attrs = new XmlAttributes(); /* Create an XmlElementAttribute to override the field that returns Instrument objects. The overridden field returns Brass objects instead. */ XmlElementAttribute attr = new XmlElementAttribute(); attr.set_ElementName("Brass"); attr.set_Type(Brass.class.ToType()); // Add the element to the collection of elements. attrs.get_XmlElements().Add(attr); // Create the XmlAttributeOverrides object. XmlAttributeOverrides attrOverrides = new XmlAttributeOverrides(); /* Add the type of the class that contains the overridden member and the XmlAttributes to override it with to the XmlAttributeOverrides object. */ attrOverrides.Add(Orchestra.class.ToType(), "instruments", attrs); // Create the XmlSerializer using the XmlAttributeOverrides. XmlSerializer s = new XmlSerializer(Orchestra.class.ToType(), attrOverrides); // Writing the file requires a TextWriter. TextWriter writer = new StreamWriter(fileName); // Create the object that will be serialized. Orchestra band = new Orchestra(); // Create an object of the derived type. Brass i = new Brass(); i.name = "Trumpet"; i.isValved = true; Instrument myInstruments[] = { i }; band.instruments = myInstruments; // Serialize the object. s.Serialize(writer, band); writer.Close(); } //SerializeObject public void DeserializeObject(String fileName) { XmlAttributeOverrides attrOverrides = new XmlAttributeOverrides(); XmlAttributes attrs = new XmlAttributes(); // Create an XmlElementAttribute to override the Instrument. XmlElementAttribute attr = new XmlElementAttribute(); attr.set_ElementName("Brass"); attr.set_Type(Brass.class.ToType()); // Add the element to the collection of elements. attrs.get_XmlElements().Add(attr); attrOverrides.Add(Orchestra.class.ToType(), "instruments", attrs); // Create the XmlSerializer using the XmlAttributeOverrides. XmlSerializer s = new XmlSerializer(Orchestra.class.ToType(), attrOverrides); FileStream fs = new FileStream(fileName, FileMode.Open); Orchestra band = (Orchestra)s.Deserialize(fs); Console.WriteLine("Brass:"); /* The difference between deserializing the overridden XML document and serializing it is this: To read the derived object values, you must declare an object of the derived type (Brass), and cast the Instrument instance to it. */ Brass b; for (int iCtr = 0; iCtr < band.instruments.length; iCtr++) { Instrument i = band.instruments[iCtr]; b = (Brass)i; Console.WriteLine(b.name + "\n" + Convert.ToString(b.isValved)); } } //DeserializeObject } //Run

System.Xml.Serialization.XmlAttributes


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。


XmlAttributes コンストラクタ ()
アセンブリ: System.Xml (system.xml.dll 内)


Orchestra という名前のクラスをシリアル化する例を次に示します。この例には、Instrument オブジェクトの配列を返す Instruments という名前の単一のフィールドが含まれています。Brass という名前の 2 番目のクラスが Instrument クラスから継承されます。この例では、XmlAttributes オブジェクトを作成して Instrument フィールドをオーバーライドします。このオーバーライドにより、フィールドが Brass オブジェクトを受け入れるようにして、XmlAttributes オブジェクトを XmlAttributeOverrides クラスのインスタンスに追加します。
Imports System Imports System.IO Imports System.Xml.Serialization Imports Microsoft.VisualBasic Public Class Orchestra Public Instruments() As Instrument End Class Public Class Instrument Public Name As String End Class Public Class Brass Inherits Instrument Public IsValved As Boolean End Class Public Class Run Public Shared Sub Main() Dim test As New Run() test.SerializeObject("Override.xml") test.DeserializeObject("Override.xml") End Sub Public Sub SerializeObject(ByVal filename As String) ' Each overridden field, property, or type requires ' an XmlAttributes object. Dim attrs As New XmlAttributes() ' Create an XmlElementAttribute to override the ' field that returns Instrument objects. The overridden field ' returns Brass objects instead. Dim attr As New XmlElementAttribute() attr.ElementName = "Brass" attr.Type = GetType(Brass) ' Add the element to the collection of elements. attrs.XmlElements.Add(attr) ' Create the XmlAttributeOverrides object. Dim attrOverrides As New XmlAttributeOverrides() ' Add the type of the class that contains the overridden ' member and the XmlAttributes to override it with to the ' XmlAttributeOverrides object. attrOverrides.Add(GetType(Orchestra), "Instruments", attrs) ' Create the XmlSerializer using the XmlAttributeOverrides. Dim s As New XmlSerializer(GetType(Orchestra), attrOverrides) ' Writing the file requires a TextWriter. Dim writer As New StreamWriter(filename) ' Create the object that will be serialized. Dim band As New Orchestra() ' Create an object of the derived type. Dim i As New Brass() i.Name = "Trumpet" i.IsValved = True Dim myInstruments() As Instrument = {i} band.Instruments = myInstruments ' Serialize the object. s.Serialize(writer, band) writer.Close() End Sub Public Sub DeserializeObject(ByVal filename As String) Dim attrOverrides As New XmlAttributeOverrides() Dim attrs As New XmlAttributes() ' Create an XmlElementAttribute to override the Instrument. Dim attr As New XmlElementAttribute() attr.ElementName = "Brass" attr.Type = GetType(Brass) ' Add the element to the collection of elements. attrs.XmlElements.Add(attr) attrOverrides.Add(GetType(Orchestra), "Instruments", attrs) ' Create the XmlSerializer using the XmlAttributeOverrides. Dim s As New XmlSerializer(GetType(Orchestra), attrOverrides) Dim fs As New FileStream(filename, FileMode.Open) Dim band As Orchestra = CType(s.Deserialize(fs), Orchestra) Console.WriteLine("Brass:") ' The difference between deserializing the overridden ' XML document and serializing it is this: To read the derived ' object values, you must declare an object of the derived type ' (Brass), and cast the Instrument instance to it. Dim b As Brass Dim i As Instrument For Each i In band.Instruments b = CType(i, Brass) Console.WriteLine(b.Name + ControlChars.Cr + _ b.IsValved.ToString()) Next i End Sub End Class
using System; using System.IO; using System.Xml.Serialization; public class Orchestra { public Instrument[] Instruments; } public class Instrument { public string Name; } public class Brass:Instrument { public bool IsValved; } public class Run { public static void Main() { Run test = new Run(); test.SerializeObject("Override.xml"); test.DeserializeObject("Override.xml"); } public void SerializeObject(string filename) { /* Each overridden field, property, or type requires an XmlAttributes object. */ XmlAttributes attrs = new XmlAttributes(); /* Create an XmlElementAttribute to override the field that returns Instrument objects. The overridden field returns Brass objects instead. */ XmlElementAttribute attr = new XmlElementAttribute(); attr.ElementName = "Brass"; attr.Type = typeof(Brass); // Add the element to the collection of elements. attrs.XmlElements.Add(attr); // Create the XmlAttributeOverrides object. XmlAttributeOverrides attrOverrides = new XmlAttributeOverrides(); /* Add the type of the class that contains the overridden member and the XmlAttributes to override it with to the XmlAttributeOverrides object. */ attrOverrides.Add(typeof(Orchestra), "Instruments", attrs); // Create the XmlSerializer using the XmlAttributeOverrides. XmlSerializer s = new XmlSerializer(typeof(Orchestra), attrOverrides); // Writing the file requires a TextWriter. TextWriter writer = new StreamWriter(filename); // Create the object that will be serialized. Orchestra band = new Orchestra(); // Create an object of the derived type. Brass i = new Brass(); i.Name = "Trumpet"; i.IsValved = true; Instrument[] myInstruments = {i}; band.Instruments = myInstruments; // Serialize the object. s.Serialize(writer,band); writer.Close(); } public void DeserializeObject(string filename) { XmlAttributeOverrides attrOverrides = new XmlAttributeOverrides(); XmlAttributes attrs = new XmlAttributes(); // Create an XmlElementAttribute to override the Instrument. XmlElementAttribute attr = new XmlElementAttribute(); attr.ElementName = "Brass"; attr.Type = typeof(Brass); // Add the element to the collection of elements. attrs.XmlElements.Add(attr); attrOverrides.Add(typeof(Orchestra), "Instruments", attrs); // Create the XmlSerializer using the XmlAttributeOverrides. XmlSerializer s = new XmlSerializer(typeof(Orchestra), attrOverrides); FileStream fs = new FileStream(filename, FileMode.Open); Orchestra band = (Orchestra) s.Deserialize(fs); Console.WriteLine("Brass:"); /* The difference between deserializing the overridden XML document and serializing it is this: To read the derived object values, you must declare an object of the derived type (Brass), and cast the Instrument instance to it. */ Brass b; foreach(Instrument i in band.Instruments) { b = (Brass)i; Console.WriteLine( b.Name + "\n" + b.IsValved); } } }
#using <System.Xml.dll> #using <System.dll> using namespace System; using namespace System::IO; using namespace System::Xml::Serialization; public ref class Instrument { public: String^ Name; }; public ref class Brass: public Instrument { public: bool IsValved; }; public ref class Orchestra { public: array<Instrument^>^Instruments; }; void SerializeObject( String^ filename ) { /* Each overridden field, property, or type requires an XmlAttributes object. */ XmlAttributes^ attrs = gcnew XmlAttributes; /* Create an XmlElementAttribute to override the field that returns Instrument objects. The overridden field returns Brass objects instead. */ XmlElementAttribute^ attr = gcnew XmlElementAttribute; attr->ElementName = "Brass"; attr->Type = Brass::typeid; // Add the element to the collection of elements. attrs->XmlElements->Add( attr ); // Create the XmlAttributeOverrides object. XmlAttributeOverrides^ attrOverrides = gcnew XmlAttributeOverrides; /* Add the type of the class that contains the overridden member and the XmlAttributes to override it with to the XmlAttributeOverrides object. */ attrOverrides->Add( Orchestra::typeid, "Instruments", attrs ); // Create the XmlSerializer using the XmlAttributeOverrides. XmlSerializer^ s = gcnew XmlSerializer( Orchestra::typeid,attrOverrides ); // Writing the file requires a TextWriter. TextWriter^ writer = gcnew StreamWriter( filename ); // Create the object that will be serialized. Orchestra^ band = gcnew Orchestra; // Create an object of the derived type. Brass^ i = gcnew Brass; i->Name = "Trumpet"; i->IsValved = true; array<Instrument^>^myInstruments = {i}; band->Instruments = myInstruments; // Serialize the object. s->Serialize( writer, band ); writer->Close(); } void DeserializeObject( String^ filename ) { XmlAttributeOverrides^ attrOverrides = gcnew XmlAttributeOverrides; XmlAttributes^ attrs = gcnew XmlAttributes; // Create an XmlElementAttribute to override the Instrument. XmlElementAttribute^ attr = gcnew XmlElementAttribute; attr->ElementName = "Brass"; attr->Type = Brass::typeid; // Add the element to the collection of elements. attrs->XmlElements->Add( attr ); attrOverrides->Add( Orchestra::typeid, "Instruments", attrs ); // Create the XmlSerializer using the XmlAttributeOverrides. XmlSerializer^ s = gcnew XmlSerializer( Orchestra::typeid,attrOverrides ); FileStream^ fs = gcnew FileStream( filename,FileMode::Open ); Orchestra^ band = dynamic_cast<Orchestra^>(s->Deserialize( fs )); Console::WriteLine( "Brass:" ); /* The difference between deserializing the overridden XML document and serializing it is this: To read the derived object values, you must declare an object of the derived type (Brass), and cast the Instrument instance to it. */ Brass^ b; System::Collections::IEnumerator^ myEnum = band->Instruments->GetEnumerator(); while ( myEnum->MoveNext() ) { Instrument^ i = safe_cast<Instrument^>(myEnum->Current); b = dynamic_cast<Brass^>(i); Console::WriteLine( "{0}\n{1}", b->Name, b->IsValved ); } } int main() { SerializeObject( "Override.xml" ); DeserializeObject( "Override.xml" ); }
import System.*; import System.IO.*; import System.Xml.Serialization.*; public class Orchestra { public Instrument instruments[]; } //Orchestra public class Instrument { public String name; } //Instrument public class Brass extends Instrument { public boolean isValved; } //Brass public class Run { public static void main(String[] args) { Run test = new Run(); test.SerializeObject("Override.xml"); test.DeserializeObject("Override.xml"); } //main public void SerializeObject(String fileName) { /* Each overridden field, property, or type requires an XmlAttributes object. */ XmlAttributes attrs = new XmlAttributes(); /* Create an XmlElementAttribute to override the field that returns Instrument objects. The overridden field returns Brass objects instead. */ XmlElementAttribute attr = new XmlElementAttribute(); attr.set_ElementName("Brass"); attr.set_Type(Brass.class.ToType()); // Add the element to the collection of elements. attrs.get_XmlElements().Add(attr); // Create the XmlAttributeOverrides object. XmlAttributeOverrides attrOverrides = new XmlAttributeOverrides(); /* Add the type of the class that contains the overridden member and the XmlAttributes to override it with to the XmlAttributeOverrides object. */ attrOverrides.Add(Orchestra.class.ToType(), "instruments", attrs); // Create the XmlSerializer using the XmlAttributeOverrides. XmlSerializer s = new XmlSerializer(Orchestra.class.ToType(), attrOverrides); // Writing the file requires a TextWriter. TextWriter writer = new StreamWriter(fileName); // Create the object that will be serialized. Orchestra band = new Orchestra(); // Create an object of the derived type. Brass i = new Brass(); i.name = "Trumpet"; i.isValved = true; Instrument myInstruments[] = { i }; band.instruments = myInstruments; // Serialize the object. s.Serialize(writer, band); writer.Close(); } //SerializeObject public void DeserializeObject(String fileName) { XmlAttributeOverrides attrOverrides = new XmlAttributeOverrides(); XmlAttributes attrs = new XmlAttributes(); // Create an XmlElementAttribute to override the Instrument. XmlElementAttribute attr = new XmlElementAttribute(); attr.set_ElementName("Brass"); attr.set_Type(Brass.class.ToType()); // Add the element to the collection of elements. attrs.get_XmlElements().Add(attr); attrOverrides.Add(Orchestra.class.ToType(), "instruments", attrs); // Create the XmlSerializer using the XmlAttributeOverrides. XmlSerializer s = new XmlSerializer(Orchestra.class.ToType(), attrOverrides); FileStream fs = new FileStream(fileName, FileMode.Open); Orchestra band = (Orchestra)s.Deserialize(fs); Console.WriteLine("Brass:"); /* The difference between deserializing the overridden XML document and serializing it is this: To read the derived object values, you must declare an object of the derived type (Brass), and cast the Instrument instance to it. */ Brass b; for (int iCtr = 0; iCtr < band.instruments.length; iCtr++) { Instrument i = band.instruments[iCtr]; b = (Brass)i; Console.WriteLine(b.name + "\n" + Convert.ToString(b.isValved)); } } //DeserializeObject } //Run

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。


XmlAttributes コンストラクタ (ICustomAttributeProvider)
アセンブリ: System.Xml (system.xml.dll 内)



Windows 98, Windows 2000 SP4, Windows Millennium Edition, 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。


XmlAttributes コンストラクタ

名前 | 説明 |
---|---|
XmlAttributes () | XmlAttributes クラスの新しいインスタンスを初期化します。 .NET Compact Framework によってサポートされています。 |
XmlAttributes (ICustomAttributeProvider) | XmlAttributes クラスの新しいインスタンスを初期化し、XmlSerializer がオブジェクトをシリアル化および逆シリアル化する方法をカスタマイズします。 |

XmlAttributes プロパティ
XmlAttributes メソッド

名前 | 説明 | |
---|---|---|
![]() | Equals | オーバーロードされます。 2 つの Object インスタンスが等しいかどうかを判断します。 ( Object から継承されます。) |
![]() | GetHashCode | 特定の型のハッシュ関数として機能します。GetHashCode は、ハッシュ アルゴリズムや、ハッシュ テーブルのようなデータ構造での使用に適しています。 ( Object から継承されます。) |
![]() | GetType | 現在のインスタンスの Type を取得します。 ( Object から継承されます。) |
![]() | ReferenceEquals | 指定した複数の Object インスタンスが同一かどうかを判断します。 ( Object から継承されます。) |
![]() | ToString | 現在の Object を表す String を返します。 ( Object から継承されます。) |

名前 | 説明 | |
---|---|---|
![]() | Finalize | Object がガベージ コレクションにより収集される前に、その Object がリソースを解放し、その他のクリーンアップ操作を実行できるようにします。 ( Object から継承されます。) |
![]() | MemberwiseClone | 現在の Object の簡易コピーを作成します。 ( Object から継承されます。) |

XmlAttributes メンバ
XmlSerializer がオブジェクトをシリアル化および逆シリアル化する方法を制御する属性オブジェクトのコレクションを示します。
XmlAttributes データ型で公開されるメンバを以下の表に示します。



名前 | 説明 | |
---|---|---|
![]() | Equals | オーバーロードされます。 2 つの Object インスタンスが等しいかどうかを判断します。 (Object から継承されます。) |
![]() | GetHashCode | 特定の型のハッシュ関数として機能します。GetHashCode は、ハッシュ アルゴリズムや、ハッシュ テーブルのようなデータ構造での使用に適しています。 (Object から継承されます。) |
![]() | GetType | 現在のインスタンスの Type を取得します。 (Object から継承されます。) |
![]() | ReferenceEquals | 指定した複数の Object インスタンスが同一かどうかを判断します。 (Object から継承されます。) |
![]() | ToString | 現在の Object を表す String を返します。 (Object から継承されます。) |

名前 | 説明 | |
---|---|---|
![]() | Finalize | Object がガベージ コレクションにより収集される前に、その Object がリソースを解放し、その他のクリーンアップ操作を実行できるようにします。 (Object から継承されます。) |
![]() | MemberwiseClone | 現在の Object の簡易コピーを作成します。 (Object から継承されます。) |

- XmlAttributesのページへのリンク