XmlObjectSerializer 類別
定義
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
提供用於將物件序列化為 XML 串流或文件的基底類別。 這個類別是抽象的。
public ref class XmlObjectSerializer abstractpublic abstract class XmlObjectSerializertype XmlObjectSerializer = classPublic MustInherit Class XmlObjectSerializer- 繼承
-
XmlObjectSerializer
- 衍生
範例
以下範例展示了一個名為 WriteObjectWithInstance 的方法，其中包含 參數 XmlObjectSerializer 。 該方法透過呼叫該WriteObject方法，使用 或 DataContractSerializerNetDataContractSerializer 序列化物件。
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
備註
擴充 以 XmlObjectSerializer 建立你自己的序列化器，來序列化和反序列化物件。 DataContractSerializer類別與NetDataContractSerializer類別都繼承自 XmlObjectSerializer 和 ，用於序列化與反序列化符合資料契約規則的物件（使用 與 DataContractAttributeDataMemberAttribute建立的物件）。
給實施者的注意事項
當你從 繼承 XmlObjectSerializer時，必須覆蓋以下成員： WriteStartObject(XmlDictionaryWriter, Object)， WriteObjectContent(XmlDictionaryWriter, Object)， WriteEndObject(XmlDictionaryWriter)。 此外， IsStartObject 還必須實作 and ReadObject 方法來進行讀取與反序列化。
建構函式
| 名稱 | Description |
|---|---|
| XmlObjectSerializer() |
初始化 XmlObjectSerializer 類別的新執行個體。 |