SoapElementAttribute.DataType プロパティとは何？わかりやすく解説 Weblio辞書

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SoapElementAttribute.DataType プロパティ

生成された XML 要素の XML スキーマ定義言語 (XSD: XML Schema Definition Language) データ型を取得または設定します。

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 Property DataType As
 String

Visual Basic (使用法)

Dim instance As SoapElementAttribute
Dim value As String

value = instance.DataType

instance.DataType = value

public string DataType { get;
 set; }

C++

public:
property String^ DataType {
    String^ get ();
    void set (String^ value);
}

/** @property */
public String get_DataType ()

/** @property */
public void set_DataType (String value)

JScript

public function get DataType
 () : String

public function set DataType
 (value : String)

プロパティ値
XML スキーマデータ型の 1 つ。

解説

XML スキーマの単純データ型と、それに相当する .NET データ型の表を次に示します。

XML スキーマの base64Binary データ型と hexBinary データ型については、Byte 構造体の配列を使用し、DataType をそれぞれ "base64Binary" または "hexBinary" に設定した SoapElementAttribute を適用します。XML スキーマの time データ型および date データ型については、DateTime 型を使用して、DataType が "date" または "time" に設定されている SoapElementAttribute を適用します。

文字列に割り当てられるすべての XML スキーマデータ型については、DataType プロパティをその XML スキーマ型に設定した SoapElementAttribute を適用します。ただし、これで変更されるのはメンバのスキーマだけであり、シリアル化形式は変更されません。

メモ
このプロパティでは大文字と小文字が区別されるため、XML スキーマデータ型を正しく設定する必要があります。

メモ
バイナリデータは、XML 属性として渡すよりも XML 要素として渡す方が効率的です。

XML データ型の詳細については、W3C (World Wide Web Consortium) (www.w3.org) のドキュメント『XML Schema Part 2: Datatypes』を参照してください。

XSD データ型	.NET データ型
anyURI	String
base64Binary	Byte オブジェクトの配列
boolean	Boolean
byte	SByte
date	DateTime
dateTime	DateTime
decimal	Decimal
double	Double
ENTITY	String
ENTITIES	String
float	Single
gDay	String
gMonth	String
gMonthDay	String
gYear	String
gYearMonth	String
hexBinary	Byte オブジェクトの配列
ID	String
IDREF	String
IDREFS	String
int	Int32
integer	String
language	String
long	Int64
Name	String
NCName	String
negativeInteger	String
NMTOKEN	String
NMTOKENS	String
normalizedString	String
nonNegativeInteger	String
nonPositiveInteger	String
NOTATION	String
positiveInteger	String
QName	XmlQualifiedName
duration	String
string	String
short	Int16
time	DateTime
token	String
unsignedByte	Byte
unsignedInt	UInt32
unsignedLong	UInt64
unsignedShort	UInt16

使用例

Vehicle という名前のフィールドが含まれている Transportation という名前のクラスのインスタンスをシリアル化する例を次に示します。このフィールドには、SoapElementAttribute が適用されています。このフィールドがシリアル化されると、その XML 要素名は "Vehicle" ではなく "Wheels" になります。SerializeOverride メソッドは、SoapElementAttribute を作成し、SoapAttributes の SoapElement プロパティに、作成した SoapElementAttribute を設定します。この SoapAttributes が、XmlTypeMapping を作成するために使用される SoapAttributeOverrides に追加されます。作成された XmlTypeMapping を使用して XmlSerializer が構築され、Transportation クラスのインスタンスが再びシリアル化されます。SoapElementAttribute を使用してシリアル化がオーバーライドされるため、生成された XML 要素の名前は "Wheels" ではなく "Truck" になります。

Visual Basic

Imports System
Imports System.IO
Imports System.Xml.Serialization
Imports System.Collections
Imports System.Xml
Imports System.Text
Public Class Transportation
   ' The SoapElementAttribute specifies that the
   ' generated XML element name will be "Wheels"
   ' instead of "Vehicle".
   <SoapElement("Wheels")> Public
 Vehicle As String 
   <SoapElement(DataType:= "dateTime")> _
   public CreationDate As DateTime    
   <SoapElement(IsNullable:= true)> _
   public thing As Thing
End Class

Public Class Thing
   <SoapElement(IsNullable:=true)> public ThingName As
 string 
End Class

Public Class Test

   Shared Sub Main()
      Dim t As Test = New
 Test()
      t.SerializeObject("SoapElementOriginalVb.xml")
      t.SerializeOverride("SoapElementOverrideVb.xml")
      Console.WriteLine("Finished writing two XML files.")
   End Sub

   ' Return an XmlSerializer used for overriding.
   Public Function CreateSoapOverrider() As
 XmlSerializer 
      ' Create the SoapAttributes and SoapAttributeOverrides objects.
      Dim soapAttrs As SoapAttributes = New
 SoapAttributes()

      Dim soapOverrides As SoapAttributeOverrides
 = _
      New SoapAttributeOverrides()
            
      ' Create a SoapElementAttribute to override 
      ' the Vehicles property. 
      Dim soapElement1 As SoapElementAttribute
 = _
      New SoapElementAttribute("Truck")
      ' Set the SoapElement to the object.
      soapAttrs.SoapElement= soapElement1

      ' Add the SoapAttributes to the SoapAttributeOverrides,
      ' specifying the member to override. 
      soapOverrides.Add(GetType(Transportation), "Vehicle",
 soapAttrs)
      
      ' Create the XmlSerializer, and return it.
      Dim myTypeMapping As XmlTypeMapping =
 (New _
      SoapReflectionImporter (soapOverrides)).ImportTypeMapping _
      (GetType(Transportation))
      return New XmlSerializer(myTypeMapping)
   End Function

   Public Sub SerializeOverride(filename As
 String)
      ' Create an XmlSerializer instance.
      Dim ser As XmlSerializer = CreateSoapOverrider()

      ' Create the object and serialize it.
      Dim myTransportation As Transportation
 = _
      New Transportation()

      myTransportation.Vehicle = "MyCar"
      myTransportation.CreationDate = DateTime.Now
      myTransportation.thing= new Thing()
      
      Dim writer As XmlTextWriter = _
      New XmlTextWriter(filename, Encoding.UTF8)
      writer.Formatting = Formatting.Indented
      writer.WriteStartElement("wrapper")
      ser.Serialize(writer, myTransportation)
      writer.WriteEndElement()
      writer.Close()
   End Sub

   Public Sub SerializeObject(filename As
 String)
      ' Create an XmlSerializer instance.
      Dim ser As XmlSerializer = _
      New XmlSerializer(GetType(Transportation))
      
      Dim myTransportation As Transportation
 = _
      New Transportation()
      
      myTransportation.Vehicle = "MyCar"
      myTransportation.CreationDate=DateTime.Now
      myTransportation.thing= new Thing()

      Dim writer As XmlTextWriter = _
      new XmlTextWriter(filename, Encoding.UTF8)
      writer.Formatting = Formatting.Indented
      writer.WriteStartElement("wrapper")
      ser.Serialize(writer, myTransportation)
      writer.WriteEndElement()
      writer.Close()
   End Sub
End Class

using System;
using System.IO;
using System.Xml.Serialization;
using System.Collections;
using System.Xml;
using System.Text;
public class Transportation
{
   // The SoapElementAttribute specifies that the
   // generated XML element name will be "Wheels"
   // instead of "Vehicle".
   [SoapElement("Wheels")]
   public string Vehicle;
   [SoapElement(DataType = "dateTime")]
   public DateTime CreationDate;
   [SoapElement(IsNullable = true)]
   public Thing thing;
   
}

public class Thing{ 
   [SoapElement(IsNullable=true)] public string
 ThingName;
}

public class Test
{
   public static void Main()
   {
      Test t = new Test();
      t.SerializeObject("SoapElementOriginal.xml");
      t.SerializeOverride("SoapElementOverride.xml");
      Console.WriteLine("Finished writing two XML files.");
   }

   // Return an XmlSerializer used for overriding.
   public XmlSerializer CreateSoapOverrider()
   {
      // Create the SoapAttributes and SoapAttributeOverrides objects.
      SoapAttributes soapAttrs = new SoapAttributes();

      SoapAttributeOverrides soapOverrides = 
      new SoapAttributeOverrides();
            
      /* Create an SoapElementAttribute to override 
      the Vehicles property. */
      SoapElementAttribute soapElement1 = 
      new SoapElementAttribute("Truck");
      // Set the SoapElement to the object.
      soapAttrs.SoapElement= soapElement1;

      /* Add the SoapAttributes to the SoapAttributeOverrides,
      specifying the member to override. */
      soapOverrides.Add(typeof(Transportation), "Vehicle", soapAttrs);
      
      // Create the XmlSerializer, and return it.
      XmlTypeMapping myTypeMapping = (new SoapReflectionImporter
      (soapOverrides)).ImportTypeMapping(typeof(Transportation));
      return new XmlSerializer(myTypeMapping);
   }

   public void SerializeOverride(string
 filename)
   {
      // Create an XmlSerializer instance.
      XmlSerializer ser = CreateSoapOverrider();

      // Create the object and serialize it.
      Transportation myTransportation = 
      new Transportation();

      myTransportation.Vehicle = "MyCar";
      myTransportation.CreationDate=DateTime.Now;
      myTransportation.thing = new Thing();

      XmlTextWriter writer = 
      new XmlTextWriter(filename, Encoding.UTF8);
      writer.Formatting = Formatting.Indented;
      writer.WriteStartElement("wrapper");
      ser.Serialize(writer, myTransportation);
      writer.WriteEndElement();
      writer.Close();
   }
   public void SerializeObject(string
 filename){
      // Create an XmlSerializer instance.
      XmlSerializer ser = new XmlSerializer(typeof(Transportation));
      Transportation myTransportation = 
      new Transportation();
      myTransportation.Vehicle = "MyCar";
      myTransportation.CreationDate = DateTime.Now;
      myTransportation.thing = new Thing();
      XmlTextWriter writer = 
      new XmlTextWriter(filename, Encoding.UTF8);
      writer.Formatting = Formatting.Indented;
      writer.WriteStartElement("wrapper");
      ser.Serialize(writer, myTransportation);
      writer.WriteEndElement();
      writer.Close();
   }
}

C++

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

using namespace System;
using namespace System::IO;
using namespace System::Xml::Serialization;
using namespace System::Collections;
using namespace System::Xml;
using namespace System::Text;
public ref class Thing
{
public:

   [SoapElement(IsNullable=true)]
   String^ ThingName;
};

public ref class Transportation
{
public:

   // The SoapElementAttribute specifies that the
   // generated XML element name will be S"Wheels"
   // instead of S"Vehicle".

   [SoapElement("Wheels")]
   String^ Vehicle;

   [SoapElement(DataType="dateTime")]
   DateTime CreationDate;

   [SoapElement(IsNullable=true)]
   Thing^ thing;
};

public ref class Test
{
public:

   // Return an XmlSerializer used for overriding.
   XmlSerializer^ CreateSoapOverrider()
   {
      // Create the SoapAttributes and SoapAttributeOverrides objects.
      SoapAttributes^ soapAttrs = gcnew SoapAttributes;
      SoapAttributeOverrides^ soapOverrides = gcnew SoapAttributeOverrides;

      // Create an SoapElementAttribute to the Vehicles property.
      SoapElementAttribute^ soapElement1 = gcnew SoapElementAttribute( "Truck"
 );

      // Set the SoapElement to the Object*.
      soapAttrs->SoapElement = soapElement1;

      // Add the SoapAttributes to the SoapAttributeOverrides,specifying
 the member to.
      soapOverrides->Add( Transportation::typeid, "Vehicle", soapAttrs
 );

      // Create the XmlSerializer, and return it.
      XmlTypeMapping^ myTypeMapping = (gcnew SoapReflectionImporter( soapOverrides
 ))->ImportTypeMapping( Transportation::typeid );
      return gcnew XmlSerializer( myTypeMapping );
   }

   void SerializeOverride( String^ filename )
   {
      // Create an XmlSerializer instance.
      XmlSerializer^ ser = CreateSoapOverrider();

      // Create the Object* and serialize it.
      Transportation^ myTransportation = gcnew Transportation;
      myTransportation->Vehicle = "MyCar";
      myTransportation->CreationDate = DateTime::Now;
      myTransportation->thing = gcnew Thing;
      XmlTextWriter^ writer = gcnew XmlTextWriter( filename,Encoding::UTF8 );
      writer->Formatting = Formatting::Indented;
      writer->WriteStartElement( "wrapper" );
      ser->Serialize( writer, myTransportation );
      writer->WriteEndElement();
      writer->Close();
   }

   void SerializeObject( String^ filename )
   {
      // Create an XmlSerializer instance.
      XmlSerializer^ ser = gcnew XmlSerializer( Transportation::typeid );
      Transportation^ myTransportation = gcnew Transportation;
      myTransportation->Vehicle = "MyCar";
      myTransportation->CreationDate = DateTime::Now;
      myTransportation->thing = gcnew Thing;
      XmlTextWriter^ writer = gcnew XmlTextWriter( filename,Encoding::UTF8 );
      writer->Formatting = Formatting::Indented;
      writer->WriteStartElement( "wrapper" );
      ser->Serialize( writer, myTransportation );
      writer->WriteEndElement();
      writer->Close();
   }
};

int main()
{
   Test^ t = gcnew Test;
   t->SerializeObject( "SoapElementOriginal.xml" );
   t->SerializeOverride( "SoapElementOverride.xml" );
   Console::WriteLine( "Finished writing two XML files." );
}

import System.*;
import System.IO.*;
import System.Xml.Serialization.*;
import System.Collections.*;
import System.Xml.*;
import System.Text.*;

public class Transportation
{
    // The SoapElementAttribute specifies that the
    // generated XML element name will be "Wheels"
    // instead of "Vehicle".
    /** @attribute SoapElement("Wheels")
     */
    public String vehicle;
    /** @attribute SoapElement(DataType = "dateTime")
     */
    public DateTime creationDate;
    /** @attribute SoapElement(IsNullable = true)
     */
    public Thing thing;
} //Transportation

public class Thing
{
    /** @attribute SoapElement(IsNullable = true)
     */
    public String thingName;
} //Thing

public class Test
{
    public static void main(String[]
 args)
    {
        Test t = new Test();
        t.SerializeObject("SoapElementOriginal.xml");
        t.SerializeOverride("SoapElementOverride.xml");
        Console.WriteLine("Finished writing two XML files.");
    } //main

    // Return an XmlSerializer used for overriding.
    public XmlSerializer CreateSoapOverrider()
    {
        // Create the SoapAttributes and SoapAttributeOverrides objects.
        SoapAttributes soapAttrs = new SoapAttributes();
        SoapAttributeOverrides soapOverrides = new SoapAttributeOverrides();

        /*  Create an SoapElementAttribute to override 
            the vehicles property. */
        SoapElementAttribute soapElement1 = new SoapElementAttribute("Truck");
        // Set the SoapElement to the object.
        soapAttrs.set_SoapElement(soapElement1);

        /*  Add the SoapAttributes to the SoapAttributeOverrides,
            specifying the member to override. */
        soapOverrides.Add(Transportation.class.ToType(), "Vehicle",
 soapAttrs);
        // Create the XmlSerializer, and return it.
        XmlTypeMapping myTypeMapping 
            = (new SoapReflectionImporter(soapOverrides)).
            ImportTypeMapping(Transportation.class.ToType());
        return new XmlSerializer(myTypeMapping);
    } //CreateSoapOverrider

    public void SerializeOverride(String fileName)
    {
        // Create an XmlSerializer instance.
        XmlSerializer ser = CreateSoapOverrider();
        // Create the object and serialize it.
        Transportation myTransportation = new Transportation();

        myTransportation.vehicle = "MyCar";
        myTransportation.creationDate = DateTime.get_Now();
        myTransportation.thing = new Thing();

        XmlTextWriter writer = new XmlTextWriter(fileName, 
            Encoding.get_UTF8());
        writer.set_Formatting(Formatting.Indented);
        writer.WriteStartElement("wrapper");
        ser.Serialize(writer, myTransportation);
        writer.WriteEndElement();
        writer.Close();
    } //SerializeOverride

    public void SerializeObject(String fileName)
    {
        // Create an XmlSerializer instance.
        XmlSerializer ser = new XmlSerializer(Transportation.class.ToType());
        Transportation myTransportation = new Transportation();
        myTransportation.vehicle = "MyCar";
        myTransportation.creationDate = DateTime.get_Now();
        myTransportation.thing = new Thing();
        XmlTextWriter writer = new XmlTextWriter(fileName, Encoding.get_UTF8());
        writer.set_Formatting(Formatting.Indented);
        writer.WriteStartElement("wrapper");
        ser.Serialize(writer, myTransportation);
        writer.WriteEndElement();
        writer.Close();
    } //SerializeObject
} //Test

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、1.0

参照

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

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SoapElementAttribute.DataType プロパティとは？ わかりやすく解説

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SoapElementAttribute.DataType プロパティとは？わかりやすく解説