XmlSerializer.CanDeserialize(XmlReader) Méthode

Définition

Espace de noms:

System.Xml.Serialization

Assembly:

System.Xml.XmlSerializer.dll

Assembly:

System.Xml.dll

Assembly:

netstandard.dll

Obtient une valeur qui indique si XmlSerializer peut désérialiser un document XML spécifié.

public:
 virtual bool CanDeserialize(System::Xml::XmlReader ^ xmlReader);

public virtual bool CanDeserialize (System.Xml.XmlReader xmlReader);

abstract member CanDeserialize : System.Xml.XmlReader -> bool
override this.CanDeserialize : System.Xml.XmlReader -> bool

Public Overridable Function CanDeserialize (xmlReader As XmlReader) As Boolean

Paramètres

xmlReader

XmlReader

XmlReader qui pointe vers le document à désérialiser.

Retours

Boolean

true si ce XmlSerializer peut désérialiser l'objet vers lequel XmlReader pointe ; sinon, false.

Exemples

L’exemple suivant appelle la CanDeserialize méthode pour vérifier si un document XML peut être désérialisé.

private:
   void TestDocument( String^ filename, Type^ objType )
   {
      // Using a FileStream, create an XmlTextReader.
      Stream^ fs = gcnew FileStream( filename,FileMode::Open );
      XmlReader^ reader = gcnew XmlTextReader( fs );
      XmlSerializer^ serializer = gcnew XmlSerializer( objType );
      if ( serializer->CanDeserialize( reader ) )
      {
         Object^ o = serializer->Deserialize( reader );
      }
      fs->Close();
   }

private void TestDocument(string filename, Type objType)
{
   // Using a FileStream, create an XmlTextReader.
   Stream fs = new FileStream(filename, FileMode.Open);
   XmlReader reader = new XmlTextReader(fs);
   XmlSerializer serializer = new XmlSerializer(objType);
   if(serializer.CanDeserialize(reader))
      {
         Object o = serializer.Deserialize(reader);
      }
   fs.Close();
}

Private Sub TestDocument _
                (ByVal filename As String, _
                 ByVal objType As Type)
    ' Using a FileStream, create an XmlTextReader.
    Dim fs As New FileStream(filename, FileMode.Open)
    Dim reader As New XmlTextReader(fs)
    Dim serializer As New XmlSerializer(objType)
    If serializer.CanDeserialize(reader) Then
        Dim o As Object = serializer.Deserialize(reader)
    End If
    fs.Close()
End Sub

Voir aussi

• Deserialize(Stream)