SoapAttributeOverrides Classe

Définition

public ref class SoapAttributeOverrides

public class SoapAttributeOverrides

type SoapAttributeOverrides = class

Public Class SoapAttributeOverrides

Héritage

Object

SoapAttributeOverrides

Exemples

L’exemple suivant sérialise une classe nommée Group. La sérialisation des GroupName champs et et IgnoreThis des membres de l’énumération GroupType sont remplacés. Dans la CreateOverrideSerializer méthode, un SoapAttributeOverrides est créé et, pour chaque membre ou énumération remplacé, un SoapAttributes est créé avec la propriété appropriée définie et ajouté à .SoapAttributeOverrides Un XmlTypeMapping est créé à l’aide de SoapAttributeOverrides, et est XmlTypeMapping utilisé pour créer le XmlSerializer qui remplace la sérialisation par défaut.

#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 Car;

// SoapInclude allows Vehicle to accept Car type.

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

public ref class Car: public Vehicle{};

public enum class GroupType
{
   // These enums can be overridden.
   [SoapEnum("Small")]
   A,
   [SoapEnum("Large")]
   B
};

public ref class Group
{
public:

   [SoapAttributeAttribute(Namespace="http://www.cpandl.com")]
   String^ GroupName;

   [SoapAttributeAttribute(DataType="base64Binary")]
   array<Byte>^GroupNumber;

   [SoapAttributeAttribute(DataType="date",AttributeName="CreationDate")]
   DateTime Today;

   [SoapElement(DataType="nonNegativeInteger",ElementName="PosInt")]
   String^ PostitiveInt;

   // This is ignored when serialized unless it's overridden.

   [SoapIgnore]
   bool IgnoreThis;
   GroupType Grouptype;
   Vehicle^ MyVehicle;

   // The SoapInclude allows the method to return a Car.

   [SoapInclude(Car::typeid)]
   Vehicle^ myCar( String^ licNumber )
   {
      Vehicle^ v;
      if ( licNumber->Equals( "" ) )
      {
         v = gcnew Car;
         v->licenseNumber = "!!!!!!";
      }
      else
      {
         v = gcnew Car;
         v->licenseNumber = licNumber;
      }

      return v;
   }
};

public ref class Run
{
public:
   static void main()
   {
      Run^ test = gcnew Run;
      test->SerializeOriginal( "SoapOriginal.xml" );
      test->SerializeOverride( "SoapOverrides.xml" );
      test->DeserializeOriginal( "SoapOriginal.xml" );
      test->DeserializeOverride( "SoapOverrides.xml" );
   }

   void SerializeOriginal( String^ filename )
   {
      // Create an instance of the XmlSerializer class.
      XmlTypeMapping^ myMapping = (gcnew SoapReflectionImporter)->ImportTypeMapping( Group::typeid );
      XmlSerializer^ mySerializer = gcnew XmlSerializer( myMapping );
      Group^ myGroup = MakeGroup();

      // Writing the file requires a TextWriter.
      XmlTextWriter^ writer = gcnew XmlTextWriter( filename,Encoding::UTF8 );
      writer->Formatting = Formatting::Indented;
      writer->WriteStartElement( "wrapper" );

      // Serialize the class, and close the TextWriter.
      mySerializer->Serialize( writer, myGroup );
      writer->WriteEndElement();
      writer->Close();
   }

   void SerializeOverride( String^ filename )
   {
      // Create an instance of the XmlSerializer class
      // that overrides the serialization.
      XmlSerializer^ overRideSerializer = CreateOverrideSerializer();
      Group^ myGroup = MakeGroup();

      // Writing the file requires a TextWriter.
      XmlTextWriter^ writer = gcnew XmlTextWriter( filename,Encoding::UTF8 );
      writer->Formatting = Formatting::Indented;
      writer->WriteStartElement( "wrapper" );

      // Serialize the class, and close the TextWriter.
      overRideSerializer->Serialize( writer, myGroup );
      writer->WriteEndElement();
      writer->Close();
   }

private:
   Group^ MakeGroup()
   {
      // Create an instance of the class that will be serialized.
      Group^ myGroup = gcnew Group;

      // Set the object properties.
      myGroup->GroupName = ".NET";
      array<Byte>^hexByte = {Convert::ToByte( 100 ),Convert::ToByte( 50 )};
      myGroup->GroupNumber = hexByte;
      DateTime myDate = DateTime(2002,5,2);
      myGroup->Today = myDate;
      myGroup->PostitiveInt = "10000";
      myGroup->IgnoreThis = true;
      myGroup->Grouptype = GroupType::B;
      Car^ thisCar = dynamic_cast<Car^>(myGroup->myCar( "1234566" ));
      myGroup->MyVehicle = thisCar;
      return myGroup;
   }

public:
   void DeserializeOriginal( String^ filename )
   {
      // Create an instance of the XmlSerializer class.
      XmlTypeMapping^ myMapping = (gcnew SoapReflectionImporter)->ImportTypeMapping( Group::typeid );
      XmlSerializer^ mySerializer = gcnew XmlSerializer( myMapping );

      // Reading the file requires an  XmlTextReader.
      XmlTextReader^ reader = gcnew XmlTextReader( filename );
      reader->ReadStartElement( "wrapper" );

      // Deserialize and cast the object.
      Group^ myGroup;
      myGroup = dynamic_cast<Group^>(mySerializer->Deserialize( reader ));
      reader->ReadEndElement();
      reader->Close();
   }

   void DeserializeOverride( String^ filename )
   {
      // Create an instance of the XmlSerializer class.
      XmlSerializer^ overRideSerializer = CreateOverrideSerializer();

      // Reading the file requires an XmlTextReader.
      XmlTextReader^ reader = gcnew XmlTextReader( filename );
      reader->ReadStartElement( "wrapper" );

      // Deserialize and cast the object.
      Group^ myGroup;
      myGroup = dynamic_cast<Group^>(overRideSerializer->Deserialize( reader ));
      reader->ReadEndElement();
      reader->Close();
      ReadGroup( myGroup );
   }

private:
   void ReadGroup( Group^ myGroup )
   {
      Console::WriteLine( myGroup->GroupName );
      Console::WriteLine( myGroup->GroupNumber[ 0 ] );
      Console::WriteLine( myGroup->GroupNumber[ 1 ] );
      Console::WriteLine( myGroup->Today );
      Console::WriteLine( myGroup->PostitiveInt );
      Console::WriteLine( myGroup->IgnoreThis );
      Console::WriteLine();
   }

   XmlSerializer^ CreateOverrideSerializer()
   {
      SoapAttributeOverrides^ mySoapAttributeOverrides = gcnew SoapAttributeOverrides;
      SoapAttributes^ soapAtts = gcnew SoapAttributes;
      SoapElementAttribute^ mySoapElement = gcnew SoapElementAttribute;
      mySoapElement->ElementName = "xxxx";
      soapAtts->SoapElement = mySoapElement;
      mySoapAttributeOverrides->Add( Group::typeid, "PostitiveInt", soapAtts );

      // Override the IgnoreThis property.
      SoapIgnoreAttribute^ myIgnore = gcnew SoapIgnoreAttribute;
      soapAtts = gcnew SoapAttributes;
      soapAtts->SoapIgnore = false;
      mySoapAttributeOverrides->Add( Group::typeid, "IgnoreThis", soapAtts );

      // Override the GroupType enumeration. 
      soapAtts = gcnew SoapAttributes;
      SoapEnumAttribute^ xSoapEnum = gcnew SoapEnumAttribute;
      xSoapEnum->Name = "Over1000";
      soapAtts->GroupType::SoapEnum = xSoapEnum;

      // Add the SoapAttributes to the 
      // mySoapAttributeOverridesrides object.
      mySoapAttributeOverrides->Add( GroupType::typeid, "A", soapAtts );

      // Create second enumeration and add it.
      soapAtts = gcnew SoapAttributes;
      xSoapEnum = gcnew SoapEnumAttribute;
      xSoapEnum->Name = "ZeroTo1000";
      soapAtts->GroupType::SoapEnum = xSoapEnum;
      mySoapAttributeOverrides->Add( GroupType::typeid, "B", soapAtts );

      // Override the Group type.
      soapAtts = gcnew SoapAttributes;
      SoapTypeAttribute^ soapType = gcnew SoapTypeAttribute;
      soapType->TypeName = "Team";
      soapAtts->SoapType = soapType;
      mySoapAttributeOverrides->Add( Group::typeid, soapAtts );

      // Create an XmlTypeMapping that is used to create an instance 
      // of the XmlSerializer. Then return the XmlSerializer object.
      XmlTypeMapping^ myMapping = (gcnew SoapReflectionImporter( mySoapAttributeOverrides ))->ImportTypeMapping( Group::typeid );
      XmlSerializer^ ser = gcnew XmlSerializer( myMapping );
      return ser;
   }
};

int main()
{
   Run::main();
}

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

public class Group
{
   [SoapAttribute (Namespace = "http://www.cpandl.com")]
   public string GroupName;

   [SoapAttribute(DataType = "base64Binary")]
   public Byte [] GroupNumber;

   [SoapAttribute(DataType = "date", AttributeName = "CreationDate")]
   public DateTime Today;
   [SoapElement(DataType = "nonNegativeInteger", ElementName = "PosInt")]
   public string PostitiveInt;
   // This is ignored when serialized unless it's overridden.
   [SoapIgnore]
   public bool IgnoreThis;

   public GroupType Grouptype;

   public Vehicle MyVehicle;

   // The SoapInclude allows the method to return a Car.
   [SoapInclude(typeof(Car))]
   public Vehicle myCar(string licNumber)
   {
      Vehicle v;
      if(licNumber == "")
         {
            v = new Car();
        v.licenseNumber = "!!!!!!";
     }
      else
     {
       v = new Car();
       v.licenseNumber = licNumber;
     }
      return v;
   }
}

// SoapInclude allows Vehicle to accept Car type.
[SoapInclude(typeof(Car))]
public abstract class Vehicle
{
   public string licenseNumber;
   public DateTime makeDate;
}

public class Car: Vehicle
{
}

public enum GroupType
{
   // These enums can be overridden.
   [SoapEnum("Small")]
   A,
   [SoapEnum("Large")]
   B
}

public class Run
{
   public static void Main()
   {
      Run test = new Run();
      test.SerializeOriginal("SoapOriginal.xml");
      test.SerializeOverride("SoapOverrides.xml");
      test.DeserializeOriginal("SoapOriginal.xml");
      test.DeserializeOverride("SoapOverrides.xml");
   }
   public void SerializeOriginal(string filename)
   {
      // Create an instance of the XmlSerializer class.
      XmlTypeMapping myMapping =
      (new SoapReflectionImporter().ImportTypeMapping(
      typeof(Group)));
      XmlSerializer mySerializer =
      new XmlSerializer(myMapping);
      Group myGroup=MakeGroup();
      // Writing the file requires a TextWriter.
      XmlTextWriter writer =
      new XmlTextWriter(filename, Encoding.UTF8);
      writer.Formatting = Formatting.Indented;
      writer.WriteStartElement("wrapper");
      // Serialize the class, and close the TextWriter.
      mySerializer.Serialize(writer, myGroup);
      writer.WriteEndElement();
      writer.Close();
   }

   public void SerializeOverride(string filename)
   {
      // Create an instance of the XmlSerializer class
      // that overrides the serialization.
      XmlSerializer overRideSerializer = CreateOverrideSerializer();
      Group myGroup=MakeGroup();
      // Writing the file requires a TextWriter.
      XmlTextWriter writer =
      new XmlTextWriter(filename, Encoding.UTF8);
      writer.Formatting = Formatting.Indented;
      writer.WriteStartElement("wrapper");
      // Serialize the class, and close the TextWriter.
      overRideSerializer.Serialize(writer, myGroup);
      writer.WriteEndElement();
      writer.Close();
   }

   private Group MakeGroup(){
      // Create an instance of the class that will be serialized.
      Group myGroup = new Group();

      // Set the object properties.
      myGroup.GroupName = ".NET";

      Byte [] hexByte = new Byte[2]{Convert.ToByte(100),
      Convert.ToByte(50)};
      myGroup.GroupNumber = hexByte;

      DateTime myDate = new DateTime(2002,5,2);
      myGroup.Today = myDate;
      myGroup.PostitiveInt= "10000";
      myGroup.IgnoreThis=true;
      myGroup.Grouptype= GroupType.B;
      Car thisCar =(Car)  myGroup.myCar("1234566");
      myGroup.MyVehicle=thisCar;
      return myGroup;
   }   	

   public void DeserializeOriginal(string filename)
   {
      // Create an instance of the XmlSerializer class.
      XmlTypeMapping myMapping =
      (new SoapReflectionImporter().ImportTypeMapping(
      typeof(Group)));
      XmlSerializer mySerializer =
      new XmlSerializer(myMapping);

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

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

   public void DeserializeOverride(string filename)
   {
      // Create an instance of the XmlSerializer class.
      XmlSerializer overRideSerializer = CreateOverrideSerializer();

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

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

   private void ReadGroup(Group myGroup){
      Console.WriteLine(myGroup.GroupName);
      Console.WriteLine(myGroup.GroupNumber[0]);
      Console.WriteLine(myGroup.GroupNumber[1]);
      Console.WriteLine(myGroup.Today);
      Console.WriteLine(myGroup.PostitiveInt);
      Console.WriteLine(myGroup.IgnoreThis);
      Console.WriteLine();
   }
   private XmlSerializer CreateOverrideSerializer()
   {
      SoapAttributeOverrides mySoapAttributeOverrides =
      new SoapAttributeOverrides();
      SoapAttributes soapAtts = new SoapAttributes();

      SoapElementAttribute mySoapElement = new SoapElementAttribute();
      mySoapElement.ElementName = "xxxx";
      soapAtts.SoapElement = mySoapElement;
      mySoapAttributeOverrides.Add(typeof(Group), "PostitiveInt",
      soapAtts);

      // Override the IgnoreThis property.
      SoapIgnoreAttribute myIgnore = new SoapIgnoreAttribute();
      soapAtts = new SoapAttributes();
      soapAtts.SoapIgnore = false;
      mySoapAttributeOverrides.Add(typeof(Group), "IgnoreThis",
      soapAtts);

      // Override the GroupType enumeration.	
      soapAtts = new SoapAttributes();
      SoapEnumAttribute xSoapEnum = new SoapEnumAttribute();
      xSoapEnum.Name = "Over1000";
      soapAtts.SoapEnum = xSoapEnum;

      // Add the SoapAttributes to the
      // mySoapAttributeOverridesrides object.
      mySoapAttributeOverrides.Add(typeof(GroupType), "A",
      soapAtts);

      // Create second enumeration and add it.
      soapAtts = new SoapAttributes();
      xSoapEnum = new SoapEnumAttribute();
      xSoapEnum.Name = "ZeroTo1000";
      soapAtts.SoapEnum = xSoapEnum;
      mySoapAttributeOverrides.Add(typeof(GroupType), "B",
      soapAtts);

      // Override the Group type.
      soapAtts = new SoapAttributes();
      SoapTypeAttribute soapType = new SoapTypeAttribute();
      soapType.TypeName = "Team";
      soapAtts.SoapType = soapType;
      mySoapAttributeOverrides.Add(typeof(Group),soapAtts);

      // Create an XmlTypeMapping that is used to create an instance
      // of the XmlSerializer. Then return the XmlSerializer object.
      XmlTypeMapping myMapping = (new SoapReflectionImporter(
      mySoapAttributeOverrides)).ImportTypeMapping(typeof(Group));
    
      XmlSerializer ser = new XmlSerializer(myMapping);
      return ser;
   }
}

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

Public Class Group
   <SoapAttribute (Namespace:= "http:'www.cpandl.com")> _
   Public GroupName As String 
   
   <SoapAttribute(DataType:= "base64Binary")> _
   Public GroupNumber() As Byte

   <SoapAttribute(DataType:= "date", _
   AttributeName:= "CreationDate")> _
   Public Today As DateTime 
   <SoapElement(DataType:= "nonNegativeInteger", _
   ElementName:= "PosInt")> _
   Public PostitiveInt As String 
   ' This is ignored when serialized unless it's overridden.
   <SoapIgnore> _ 
   Public IgnoreThis As Boolean 
   
   Public Grouptype As GroupType 

   Public MyVehicle As Vehicle 

   '  The SoapInclude allows the method to return a Car.
   <SoapInclude(GetType(Car))> _
   Public Function myCar(licNumber As String ) As Vehicle 
      Dim v As Vehicle 
      if licNumber = "" Then
         v = New Car()
         v.licenseNumber = "!!!!!!"
      else  
       v = New Car()
       v.licenseNumber = licNumber
      End If
      
      return v
   End Function
End Class
  
' SoapInclude allows Vehicle to accept Car type.
<SoapInclude(GetType(Car))> _
Public MustInherit  class Vehicle
   Public licenseNumber As String 
   Public makeDate As DateTime 
End Class

Public Class Car
   Inherits Vehicle

End Class

Public enum GroupType
   ' These enums can be overridden.
   <SoapEnum("Small")> _
   A
   <SoapEnum("Large")> _ 
   B
End Enum
 
Public Class Run

   Shared Sub Main()
      Dim test As Run = New Run()
      test.SerializeOriginal("SoapOriginal.xml")
      test.SerializeOverride("SoapOverrides.xml")
      test.DeserializeOriginal("SoapOriginal.xml")
      test.DeserializeOverride("SoapOverrides.xml")
   End SUb
   
   Public Sub SerializeOriginal(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)
      
      Dim myGroup As Group =MakeGroup()
      ' Writing the file requires a TextWriter.
      Dim writer As XmlTextWriter  = _
      New XmlTextWriter(filename, Encoding.UTF8)
      writer.Formatting = Formatting.Indented
      writer.WriteStartElement("wrapper")
      ' Serialize the class, and close the TextWriter.
      mySerializer.Serialize(writer, myGroup)
      writer.WriteEndElement()
      writer.Close()
   End Sub

   Public Sub SerializeOverride(filename As String)
      ' Create an instance of the XmlSerializer class
      ' that overrides the serialization.
      Dim overRideSerializer As XmlSerializer = _
      CreateOverrideSerializer()
      Dim myGroup As Group =MakeGroup()
      ' Writing the file requires a TextWriter.
      Dim writer As XmlTextWriter  = _
      New XmlTextWriter(filename, Encoding.UTF8)
      writer.Formatting = Formatting.Indented
      writer.WriteStartElement("wrapper")
      ' Serialize the class, and close the TextWriter.
      overRideSerializer.Serialize(writer, myGroup)
      writer.WriteEndElement()
      writer.Close()
    End Sub

   private Function MakeGroup() As Group 
      ' Create an instance of the class that will be serialized.
      Dim myGroup As Group  = New Group()

      ' Set the object properties.
      myGroup.GroupName = ".NET"

      Dim hexByte()As Byte = new Byte(1){Convert.ToByte(100), _
      Convert.ToByte(50)}
      myGroup.GroupNumber = hexByte

      Dim myDate As DateTime  = new DateTime(2002,5,2)
      myGroup.Today = myDate

      myGroup.PostitiveInt = "10000"
    myGroup.IgnoreThis = true
    myGroup.Grouptype = GroupType.B
    Dim thisCar As Car 
    thisCar =CType(myGroup.myCar("1234566"), Car)
    myGroup.myVehicle=thisCar
      return myGroup
   End Function   	

   Public Sub DeserializeOriginal(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)

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

      ' Deserialize and cast the object.
      Dim myGroup As Group  = _
      CType(mySerializer.Deserialize(reader), Group)
      reader.ReadEndElement()
      reader.Close()
   End Sub

   Public Sub DeserializeOverride(filename As String)
      ' Create an instance of the XmlSerializer class.
      Dim overRideSerializer As XmlSerializer  = _
      CreateOverrideSerializer()

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

      ' Deserialize and cast the object.
      Dim myGroup As Group = _
      CType(overRideSerializer.Deserialize(reader), Group)
      reader.ReadEndElement()
      reader.Close()
      ReadGroup(myGroup)
   End Sub

   private Sub ReadGroup(myGroup As Group)
      Console.WriteLine(myGroup.GroupName)
      Console.WriteLine(myGroup.GroupNumber(0))
      Console.WriteLine(myGroup.GroupNumber(1))
      Console.WriteLine(myGroup.Today)
      Console.WriteLine(myGroup.PostitiveInt)
      Console.WriteLine(myGroup.IgnoreThis)
      Console.WriteLine()
   End Sub
   
   Private Function CreateOverrideSerializer() As XmlSerializer
      Dim soapOver As SoapAttributeOverrides = New SoapAttributeOverrides()
      Dim soapAtts As SoapAttributes = New SoapAttributes()

      Dim mySoapElement As SoapElementAttribute = New SoapElementAttribute()
      mySoapElement.ElementName = "xxxx"
      soapAtts.SoapElement = mySoapElement
      soapOver.Add(GetType(Group), "PostitiveInt", soapAtts)

      ' Override the IgnoreThis property.
      Dim myIgnore As SoapIgnoreAttribute  = new SoapIgnoreAttribute()
      soapAtts = New SoapAttributes()
      soapAtts.SoapIgnore = false
      soapOver.Add(GetType(Group), "IgnoreThis", soapAtts)

      ' Override the GroupType enumeration.
      soapAtts = New SoapAttributes()
      Dim xSoapEnum As SoapEnumAttribute = new SoapEnumAttribute()
      xSoapEnum.Name = "Over1000"
      soapAtts.SoapEnum = xSoapEnum
      ' Add the SoapAttributes to the SoapOverrides object.
      soapOver.Add(GetType(GroupType), "A", soapAtts)

      ' Create second enumeration and add it.
      soapAtts = New SoapAttributes()
      xSoapEnum = New SoapEnumAttribute()
      xSoapEnum.Name = "ZeroTo1000"
      soapAtts.SoapEnum = xSoapEnum
      soapOver.Add(GetType(GroupType), "B", soapAtts)

      ' Override the Group type.
      soapAtts = New SoapAttributes()
      Dim soapType As SoapTypeAttribute = New SoapTypeAttribute()
      soapType.TypeName = "Team"
      soapAtts.SoapType = soapType
      soapOver.Add(GetType(Group),soapAtts)
    
      Dim myMapping As XmlTypeMapping = (New SoapReflectionImporter( _
      soapOver)).ImportTypeMapping(GetType(Group))
    
       Dim ser As XmlSerializer = new XmlSerializer(myMapping)
      return ser
   End Function
End Class

Remarques

La SoapAttributeOverrides classe permet à un de XmlSerializer remplacer la méthode par défaut de sérialisation d’un ensemble d’objets. La substitution de la sérialisation de cette façon a deux utilisations : premièrement, vous pouvez contrôler et augmenter la sérialisation des objets trouvés dans une DLL, même si vous n’avez pas accès à la source ; deuxièmement, vous pouvez créer un ensemble de classes sérialisables, mais sérialiser les objets de plusieurs manières. Par exemple, au lieu de sérialiser les membres d’une instance de classe en tant qu’éléments XML, vous pouvez les sérialiser en tant qu’attributs XML, ce qui permet d’obtenir un document plus efficace à transporter.

Après avoir créé un SoapAttributeOverrides, vous créez un à l’aide XmlTypeMapping de la ImportTypeMapping méthode de la SoapReflectionImporter classe . Passez l’objet résultant en tant qu’argument au XmlSerializer constructeur. Le résultat XmlSerializer utilise les données contenues par pour SoapAttributeOverrides remplacer les attributs qui contrôlent la façon dont les objets sont sérialisés. Pour ce faire, contient SoapAttributeOverrides une collection des types d’objets qui sont remplacés, ainsi qu’un SoapAttributes associé à chaque type d’objet remplacé. Chacune SoapAttributes contient un ensemble approprié d’objets d’attribut qui contrôlent la façon dont chaque champ, propriété ou classe est sérialisé.

Le processus de création et d’utilisation d’un SoapAttributeOverrides est le suivant :

1. Créez un SoapAttributes.

2. Créez un objet d’attribut approprié à l’objet en cours de substitution. Par exemple, pour remplacer un champ ou une propriété, créez un SoapElementAttribute, à l’aide du nouveau type dérivé. Vous pouvez éventuellement affecter un nouveau ElementName qui remplace le nom d’attribut ou l’espace de noms de la classe de base.

3. Ajoutez l’objet d’attribut à la propriété ou à la collection appropriée SoapAttributes . Par exemple, vous devez définir la SoapElement propriété de l’objet SoapAttributes sur et SoapElementAttribute spécifier le nom de membre qui est remplacé.

4. Créez un SoapAttributeOverrides.

5. Ajoutez au SoapAttributes à à l’aide SoapAttributeOverrides de la Add méthode . Si l’objet remplacé est un SoapTypeAttribute, vous devez uniquement spécifier le type de l’objet remplacé. Toutefois, si vous remplacez un champ ou une propriété, vous devez également spécifier le nom du membre remplacé.

6. Créez un XmlTypeMapping à l’aide de la ImportTypeMapping méthode de la SoapReflectionImporter classe .

7. Lors de la construction de , XmlSerializerpassez le XmlTypeMapping au XmlSerializer constructeur.

8. Utilisez le résultat XmlSerializer pour sérialiser ou désérialiser les objets de classe.

Constructeurs

Propriétés

Méthodes

S’applique à

Voir aussi

• XmlSerializer
• Introduction à la sérialisation XML
• Comment : sérialiser un objet en tant que flux XML encodé selon le protocole SOAP
• Attributs qui contrôlent la sérialisation SOAP encodée
• Exemples de sérialisation XML