XmlAttributes.XmlType Proprietà

Definizione

Spazio dei nomi:

System.Xml.Serialization

Assembly:

System.Xml.XmlSerializer.dll

Assembly:

System.Xml.dll

Assembly:

netstandard.dll

Ottiene o imposta un oggetto che specifica come XmlSerializer serializza una classe alla quale è stato applicato XmlTypeAttribute.

public:
 property System::Xml::Serialization::XmlTypeAttribute ^ XmlType { System::Xml::Serialization::XmlTypeAttribute ^ get(); void set(System::Xml::Serialization::XmlTypeAttribute ^ value); };

public System.Xml.Serialization.XmlTypeAttribute XmlType { get; set; }

public System.Xml.Serialization.XmlTypeAttribute? XmlType { get; set; }

member this.XmlType : System.Xml.Serialization.XmlTypeAttribute with get, set

Public Property XmlType As XmlTypeAttribute

Valore della proprietà

XmlTypeAttribute

Un XmlTypeAttribute che esegue l'override di un XmlTypeAttribute applicato a una dichiarazione di classe.

Esempio

Nell'esempio seguente viene creato un XmlTypeAttribute oggetto e viene assegnato alla XmlType proprietà di un XmlAttributes oggetto .

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

using namespace System;
using namespace System::IO;
using namespace System::Xml::Serialization;
public ref class Car
{
public:
   int ID;
};

public ref class Transportation
{
public:
   array<Car^>^Cars;
};

// Return an XmlSerializer used for overriding.
XmlSerializer^ CreateOverrider()
{
   // Create the XmlAttributes and XmlAttributeOverrides objects.
   XmlAttributes^ attrs = gcnew XmlAttributes;
   XmlAttributeOverrides^ xOver = gcnew XmlAttributeOverrides;

   /* Create an XmlTypeAttribute and change the name of the 
      XML type. */
   XmlTypeAttribute^ xType = gcnew XmlTypeAttribute;
   xType->TypeName = "Autos";

   // Set the XmlTypeAttribute to the XmlType property.
   attrs->XmlType = xType;

   /* Add the XmlAttributes to the XmlAttributeOverrides,
      specifying the member to override. */
   xOver->Add( Car::typeid, attrs );

   // Create the XmlSerializer, and return it.
   XmlSerializer^ xSer = gcnew XmlSerializer( Transportation::typeid,xOver );
   return xSer;
}

void SerializeObject( String^ filename )
{
   // Create an XmlSerializer instance.
   XmlSerializer^ xSer = CreateOverrider();

   // Create object and serialize it.
   Transportation^ myTransportation = gcnew Transportation;
   Car^ c1 = gcnew Car;
   c1->ID = 12;
   Car^ c2 = gcnew Car;
   c2->ID = 44;
   array<Car^>^temp0 = {c1,c2};
   myTransportation->Cars = temp0;

   // To write the file, a TextWriter is required.
   TextWriter^ writer = gcnew StreamWriter( filename );
   xSer->Serialize( writer, myTransportation );
}

int main()
{
   SerializeObject( "XmlType.xml" );
}

using System;
using System.IO;
using System.Xml.Serialization;

public class Transportation
{
   public Car[] Cars;
}

public class Car
{
   public int ID;
}

public class Test
{
   public static void Main()
   {
      Test t = new Test();
      t.SerializeObject("XmlType.xml");
   }

   // Return an XmlSerializer used for overriding.
   public XmlSerializer CreateOverrider()
   {
      // Create the XmlAttributes and XmlAttributeOverrides objects.
      XmlAttributes attrs = new XmlAttributes();
      XmlAttributeOverrides xOver = new XmlAttributeOverrides();

      /* Create an XmlTypeAttribute and change the name of the
         XML type. */
      XmlTypeAttribute xType = new XmlTypeAttribute();
      xType.TypeName = "Autos";

      // Set the XmlTypeAttribute to the XmlType property.
      attrs.XmlType = xType;

      /* Add the XmlAttributes to the XmlAttributeOverrides,
         specifying the member to override. */
      xOver.Add(typeof(Car), attrs);

      // Create the XmlSerializer, and return it.
      XmlSerializer xSer = new XmlSerializer
      (typeof(Transportation), xOver);
      return xSer;
   }

   public void SerializeObject(string filename)
   {
      // Create an XmlSerializer instance.
      XmlSerializer xSer = CreateOverrider();

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

      Car c1 = new Car();
      c1.ID = 12;

      Car c2 = new Car();
      c2.ID = 44;

      myTransportation.Cars = new Car[2]{c1,c2};

      // To write the file, a TextWriter is required.
      TextWriter writer = new StreamWriter(filename);
      xSer.Serialize(writer, myTransportation);
   }
}

Imports System.IO
Imports System.Xml.Serialization


Public Class Transportation
    Public Cars() As Car
End Class

Public Class Car
    Public ID As Integer
End Class


Public Class Test
    
    Public Shared Sub Main()
        Dim t As New Test()
        t.SerializeObject("XmlType.xml")
    End Sub
    
    
    ' Return an XmlSerializer used for overriding.
    Public Function CreateOverrider() As XmlSerializer
        ' Create the XmlAttributes and XmlAttributeOverrides objects.
        Dim attrs As New XmlAttributes()
        Dim xOver As New XmlAttributeOverrides()
        
        ' Create an XmlTypeAttribute and change the name of the
        ' XML type. 
        Dim xType As New XmlTypeAttribute()
        xType.TypeName = "Autos"
        
        ' Set the XmlTypeAttribute to the XmlType property.
        attrs.XmlType = xType
        
        ' Add the XmlAttributes to the XmlAttributeOverrides,
        ' specifying the member to override. 
        xOver.Add(GetType(Car), attrs)
        
        ' Create the XmlSerializer, and return it.
        Dim xSer As New XmlSerializer(GetType(Transportation), xOver)
        Return xSer
    End Function
    
    
    Public Sub SerializeObject(ByVal filename As String)
        ' Create an XmlSerializer instance.
        Dim xSer As XmlSerializer = CreateOverrider()
        
        ' Create an object and serialize it.
        Dim myTransportation As New Transportation()
        
        Dim c1 As New Car()
        c1.ID = 12
        
        Dim c2 As New Car()
        c2.ID = 44
        
        myTransportation.Cars = New Car(1) {c1, c2}
        
        ' To write the file, a TextWriter is required.
        Dim writer As New StreamWriter(filename)
        xSer.Serialize(writer, myTransportation)
    End Sub
End Class

Commenti

Può XmlTypeAttribute essere utilizzato per controllare la modalità di serializzazione di un tipo da parte di XmlSerializer. Ad esempio, per impostazione predefinita, quando un tipo viene serializzato, XmlSerializer usa il nome della classe come nome dell'elemento XML. Creando un oggetto XmlTypeAttribute, impostando la XmlType proprietà su di essa e creando un XmlAttributeOverrides oggetto , è possibile modificare il nome dell'elemento XML.