XmlAttributes.XmlText Eigenschaft

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

public System.Xml.Serialization.XmlTextAttribute XmlText { get; set; }

public System.Xml.Serialization.XmlTextAttribute? XmlText { get; set; }

member this.XmlText : System.Xml.Serialization.XmlTextAttribute with get, set

Public Property XmlText As XmlTextAttribute

Eigenschaftswert

Ein XmlTextAttribute, das die Standardserialisierung öffentlicher Eigenschaften oder Felder überschreibt.

Beispiele

Im folgenden Beispiel wird die Klasse mit dem Namen Groupserialisiert, die ein Feld mit dem Namen Commententhält. Um die Standardeinstellung zu überschreiben, wie das XmlSerializer Feld serialisiert wird, werden im Beispiel ein XmlAttributeOverrides - und ein XmlAttributes -Objekt erstellt. Das Beispiel erstellt dann ein XmlTextAttribute Objekt, das der XmlText -Eigenschaft zugewiesen wird, und fügt dem XmlAttributes Objekt (mit dem Namen des Felds, das als XML-Text serialisiert werden soll) dem XmlAttributeOverrides Objekt hinzu. Zuletzt wird im Beispiel mithilfe des XmlAttributeOverrides -Objekts ein XmlSerializer erstellt.

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

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

// This is the class that will be serialized.
public ref class Group
{
public:
   String^ GroupName;

   // This field will be serialized as XML text. 
   String^ Comment;
};

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

   /* Create an XmlTextAttribute and assign it to the XmlText 
      property. This instructs the XmlSerializer to treat the 
      Comment field as XML text. */
   XmlTextAttribute^ xText = gcnew XmlTextAttribute;
   xAttrs->XmlText = xText;
   xOver->Add( Group::typeid, "Comment", xAttrs );

   // Create the XmlSerializer, and return it.
   return gcnew XmlSerializer( Group::typeid,xOver );
}

void SerializeObject( String^ filename )
{
   // Create an instance of the XmlSerializer class.
   XmlSerializer^ mySerializer = CreateOverrider();

   // Writing the file requires a TextWriter.
   TextWriter^ writer = gcnew StreamWriter( filename );

   // Create an instance of the class that will be serialized.
   Group^ myGroup = gcnew Group;

   // Set the object properties.
   myGroup->GroupName = ".NET";
   myGroup->Comment = "Great Stuff!";

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

void DeserializeObject( String^ filename )
{
   XmlSerializer^ mySerializer = CreateOverrider();
   FileStream^ fs = gcnew FileStream( filename,FileMode::Open );
   Group^ myGroup = dynamic_cast<Group^>(mySerializer->Deserialize( fs ));
   Console::WriteLine( myGroup->GroupName );
   Console::WriteLine( myGroup->Comment );
}

int main()
{
   SerializeObject( "OverrideText.xml" );
   DeserializeObject( "OverrideText.xml" );
}

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

// This is the class that will be serialized.
public class Group
{
   public string GroupName;

   // This field will be serialized as XML text.
   public string Comment;
}

public class Run
{
   public static void Main()
   {
      Run test = new Run();
      test.SerializeObject("OverrideText.xml");
      test.DeserializeObject("OverrideText.xml");
   }

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

      /* Create an XmlTextAttribute and assign it to the XmlText
      property. This instructs the XmlSerializer to treat the
      Comment field as XML text. */
      XmlTextAttribute xText = new XmlTextAttribute();
      xAttrs.XmlText = xText;
      xOver.Add(typeof(Group), "Comment", xAttrs);

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

   public void SerializeObject(string filename)
   {
      // Create an instance of the XmlSerializer class.
      XmlSerializer mySerializer =  CreateOverrider();
      // Writing the file requires a TextWriter.
      TextWriter writer = new StreamWriter(filename);

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

      // Set the object properties.
      myGroup.GroupName = ".NET";
      myGroup.Comment = "Great Stuff!";
      // Serialize the class, and close the TextWriter.
      mySerializer.Serialize(writer, myGroup);
      writer.Close();
   }

   public void DeserializeObject(string filename)
   {
      XmlSerializer mySerializer = CreateOverrider();
      FileStream fs = new FileStream(filename, FileMode.Open);
      Group myGroup = (Group)
      mySerializer.Deserialize(fs);
      Console.WriteLine(myGroup.GroupName);
      Console.WriteLine(myGroup.Comment);
   }
}

Imports System.IO
Imports System.Xml
Imports System.Xml.Serialization


' This is the class that will be serialized.
Public Class Group
    Public GroupName As String
    
    ' This field will be serialized as XML text. 
    Public Comment As String
End Class


Public Class Run
    
    Public Shared Sub Main()
        Dim test As New Run()
        test.SerializeObject("OverrideText.xml")
        test.DeserializeObject("OverrideText.xml")
    End Sub

        
    ' Return an XmlSerializer to be used for overriding. 
    Public Function CreateOverrider() As XmlSerializer
        ' Create the XmlAttributeOverrides and XmlAttributes objects.
        Dim xOver As New XmlAttributeOverrides()
        Dim xAttrs As New XmlAttributes()
        
        ' Create an XmlTextAttribute and assign it to the XmlText
        ' property. This instructs the XmlSerializer to treat the
        ' Comment field as XML text. 
        Dim xText As New XmlTextAttribute()
        xAttrs.XmlText = xText
        xOver.Add(GetType(Group), "Comment", xAttrs)
        
        ' Create the XmlSerializer, and return it.
        Return New XmlSerializer(GetType(Group), xOver)
    End Function
    
    
    
    Public Sub SerializeObject(ByVal filename As String)
        ' Create an instance of the XmlSerializer class.
        Dim mySerializer As XmlSerializer = CreateOverrider()
        ' Writing the file requires a TextWriter.
        Dim writer As New StreamWriter(filename)
        
        ' Create an instance of the class that will be serialized.
        Dim myGroup As New Group()
        
        ' Set the object properties.
        myGroup.GroupName = ".NET"
        myGroup.Comment = "Great Stuff!"
        ' Serialize the class, and close the TextWriter.
        mySerializer.Serialize(writer, myGroup)
        writer.Close()
    End Sub
    
    
    Public Sub DeserializeObject(ByVal filename As String)
        Dim mySerializer As XmlSerializer = CreateOverrider()
        Dim fs As New FileStream(filename, FileMode.Open)
        Dim myGroup As Group = CType(mySerializer.Deserialize(fs), Group)
        Console.WriteLine(myGroup.GroupName)
        Console.WriteLine(myGroup.Comment)
    End Sub
End Class

Hinweise

Standardmäßig wird ein öffentliches Feld oder eine öffentliche Lese-/Schreibeigenschaft als XML-Element von XmlSerializerserialisiert. Es kann jedoch erzwingen, dass das Feld oder die Eigenschaft als XML-Text serialisiert wird, indem ein XmlTextAttribute auf das Feld oder die Eigenschaft angewendet wird.

Um die Standardserialisierung eines Felds oder einer Eigenschaft (die kein Array zurückgibt) außer Kraft zu setzen, erstellen Sie ein XmlTextAttribute , und weisen Sie es der XmlText Eigenschaft eines XmlAttributes Objekts zu. Fügen Sie das XmlAttributes -Objekt einem XmlAttributeOverrides -Objekt hinzu, und geben Sie den Typ des Objekts an, das das überschriebene Feld oder die überschriebene Eigenschaft enthält, sowie den Namen des überschriebenen Felds oder der -Eigenschaft.

Gilt für: