XmlObjectSerializer Klasse

Definition

public ref class XmlObjectSerializer abstract

public abstract class XmlObjectSerializer

type XmlObjectSerializer = class

Public MustInherit Class XmlObjectSerializer

Vererbung

Object

XmlObjectSerializer

Abgeleitet

System.Runtime.Serialization.DataContractSerializer

System.Runtime.Serialization.Json.DataContractJsonSerializer

System.Runtime.Serialization.NetDataContractSerializer

Beispiele

Das folgende Beispiel zeigt eine Methode mit der Bezeichnung WriteObjectWithInstance, die einen XmlObjectSerializer als Parameter enthält. Die Methode serialisiert ein Objekt, indem sie den DataContractSerializer oder den NetDataContractSerializer verwendet oder indem sie die WriteObject-Methode aufruft.

public class Test
{
    private void WriteObjectWithInstance(XmlObjectSerializer xm, Company graph,
       string fileName)
    {
        // Use either the XmlDataContractSerializer or NetDataContractSerializer,
        // or any other class that inherits from XmlObjectSerializer to write with.
        Console.WriteLine(xm.GetType());
        FileStream fs = new FileStream(fileName, FileMode.Create);
        XmlDictionaryWriter writer = XmlDictionaryWriter.CreateTextWriter(fs);
        xm.WriteObject(writer, graph);
        Console.WriteLine("Done writing {0}", fileName);
    }

    private void Run()
    {
        // Create the object to write to a file.
        Company graph = new Company();
        graph.Name = "cohowinery.com";

        // Create a DataContractSerializer and a NetDataContractSerializer.
        // Pass either one to the WriteObjectWithInstance method.
        DataContractSerializer dcs = new DataContractSerializer(typeof(Company));
        NetDataContractSerializer ndcs = new NetDataContractSerializer();
        WriteObjectWithInstance(dcs, graph, @"datacontract.xml");
        WriteObjectWithInstance(ndcs, graph, @"netDatacontract.xml");
    }

    [DataContract]
    public class Company
    {
        [DataMember]
        public string Name;
    }

    static void Main()
    {
        try
        {
            Console.WriteLine("Starting");
            Test t = new Test();
            t.Run();
            Console.WriteLine("Done");
            Console.ReadLine();
        }

        catch (InvalidDataContractException iExc)
        {
            Console.WriteLine("You have an invalid data contract: ");
            Console.WriteLine(iExc.Message);
            Console.ReadLine();
        }

        catch (SerializationException serExc)
        {
            Console.WriteLine("There is a problem with the instance:");
            Console.WriteLine(serExc.Message);
            Console.ReadLine();
        }

        catch (QuotaExceededException qExc)
        {
            Console.WriteLine("The quota has been exceeded");
            Console.WriteLine(qExc.Message);
            Console.ReadLine();
        }
        catch (Exception exc)
        {
            Console.WriteLine(exc.Message);
            Console.WriteLine(exc.ToString());
            Console.ReadLine();
        }
    }

Public Class Test
    
    Private Sub WriteObjectWithInstance(ByVal xm As XmlObjectSerializer, _
      ByVal graph As Company, ByVal fileName As String) 
        ' Use either the XmlDataContractSerializer or NetDataContractSerializer,
        ' or any other class that inherits from XmlObjectSerializer to write with.
        Console.WriteLine(xm.GetType())
        Dim fs As New FileStream(fileName, FileMode.Create)
        Dim writer As XmlDictionaryWriter = XmlDictionaryWriter.CreateTextWriter(fs)
        xm.WriteObject(writer, graph)
        Console.WriteLine("Done writing {0}", fileName)
    
    End Sub 
    
    
    Private Sub Run() 
        ' Create the object to write to a file.
        Dim graph As New Company()
        graph.Name = "cohowinery.com"
        
        ' Create a DataContractSerializer and a NetDataContractSerializer.
        ' Pass either one to the WriteObjectWithInstance method.
        Dim dcs As New DataContractSerializer(GetType(Company))
        Dim ndcs As New NetDataContractSerializer()
        WriteObjectWithInstance(dcs, graph, "datacontract.xml")
        WriteObjectWithInstance(ndcs, graph, "netDatacontract.xml")
    
    End Sub 
    
    <DataContract()>  _
    Public Class Company
        <DataMember()>  _
        Public Name As String
    End Class 
    
    
    Shared Sub Main() 
        Try
            Console.WriteLine("Starting")
            Dim t As New Test()
            t.Run()
            Console.WriteLine("Done")
            Console.ReadLine()
        
        Catch iExc As InvalidDataContractException
            Console.WriteLine("You have an invalid data contract: ")
            Console.WriteLine(iExc.Message)
            Console.ReadLine()
        
        Catch serExc As SerializationException
            Console.WriteLine("There is a problem with the instance:")
            Console.WriteLine(serExc.Message)
            Console.ReadLine()
        
        Catch qExc As QuotaExceededException
            Console.WriteLine("The quota has been exceeded")
            Console.WriteLine(qExc.Message)
            Console.ReadLine()
        Catch exc As Exception
            Console.WriteLine(exc.Message)
            Console.WriteLine(exc.ToString())
            Console.ReadLine()
        End Try
    
    End Sub 
End Class

Hinweise

Erweitern Sie den XmlObjectSerializer, um ein eigenes Serialisierungsprogramm zur Serialisierung und Deserialisierung von Objekten zu erstellen. Sowohl die DataContractSerializer-Klasse als auch die NetDataContractSerializer-Klasse erben vom XmlObjectSerializer und werden zur Serialisierung und Deserialisierung von Objekten verwendet, die Datenvertragsregeln entsprechen (Objekte, die mit dem DataContractAttribute und dem DataMemberAttribute erstellt wurden).

Hinweise für Ausführende

Wenn Sie von XmlObjectSerializer erben, müssen Sie die folgenden Member überschreiben: WriteStartObject(XmlDictionaryWriter, Object), WriteObjectContent(XmlDictionaryWriter, Object), WriteEndObject(XmlDictionaryWriter). Außerdem müssen die IsStartObject-Methode und die ReadObject-Methode zum Lesen und Deserialisieren implementiert werden.

Konstruktoren

Methoden

Gilt für

Siehe auch

• DataContractSerializer
• NetDataContractSerializer
• Verwenden von Datenverträgen
• Data Contract Serializer