NetDataContractSerializer.WriteStartObject 方法

参考

定义

命名空间:: System.Runtime.Serialization

程序集:: System.Runtime.Serialization.dll

重要

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使用指定的写入器写入开始 XML 元素。

重载

WriteStartObject(XmlDictionaryWriter, Object)	使用 XmlDictionaryWriter 写入开始 XML 元素。
WriteStartObject(XmlWriter, Object)	使用 XmlWriter 写入开始 XML 元素。

WriteStartObject(XmlDictionaryWriter, Object)

使用 XmlDictionaryWriter 写入开始 XML 元素。

public:
 override void WriteStartObject(System::Xml::XmlDictionaryWriter ^ writer, System::Object ^ graph);

public override void WriteStartObject (System.Xml.XmlDictionaryWriter writer, object graph);

override this.WriteStartObject : System.Xml.XmlDictionaryWriter * obj -> unit

Public Overrides Sub WriteStartObject (writer As XmlDictionaryWriter, graph As Object)

参数

writer: XmlDictionaryWriter

用于写入 XML 元素的 XmlDictionaryWriter。

graph: Object

要序列化的对象。将自动序列化此根对象的所有子对象。

例外

InvalidDataContractException

正在序列化的类型不符合数据协定规则。例如，DataContractAttribute 特性未应用于该类型。

SerializationException

正在序列化的实例有问题。

QuotaExceededException

已超出要序列化的对象的最大数量。请检查 MaxItemsInObjectGraph 属性。

示例

下面的示例创建要序列化的对象、NetDataContractSerializer 的实例以及 XmlDictionaryWriter 类的实例。该示例使用 WriteStartObject、WriteObjectContent 和 WriteEndObject 方法将对象数据写入 XML 文档。

public sealed class ShowWriteStartObject
{

    public static void WriteObjectData(string path)
    {
        // Create the object to serialize.
        Person p = new Person("Lynn", "Tsoflias", 9876);

        // Create the writer.
        FileStream fs = new FileStream(path, FileMode.Create);
        XmlDictionaryWriter writer =
            XmlDictionaryWriter.CreateTextWriter(fs);

        NetDataContractSerializer ser =
            new NetDataContractSerializer();

        // Use the writer to start a document.
        writer.WriteStartDocument(true);

        // Use the serializer to write the start of the
        // object data. Use it again to write the object
        // data.
        ser.WriteStartObject(writer, p);
        ser.WriteObjectContent(writer, p);

        // Use the serializer to write the end of the
        // object data. Then use the writer to write the end
        // of the document.
        ser.WriteEndObject(writer);
        writer.WriteEndDocument();

        Console.WriteLine("Done");

        // Close and release the writer resources.
        writer.Flush();
        fs.Flush();
        fs.Close();
    }

NotInheritable Public Class ShowWriteStartObject
     
    Public Shared Sub WriteObjectData(ByVal path As String) 
        ' Create the object to serialize.
        Dim p As New Person("Lynn", "Tsoflias", 9876)
        
        ' Create the writer.
        Dim fs As New FileStream(path, FileMode.Create)
        Dim writer As XmlDictionaryWriter = XmlDictionaryWriter.CreateTextWriter(fs)
        
        Dim ser As New System.Runtime.Serialization.NetDataContractSerializer()        

        ' Use the writer to start a document.
        writer.WriteStartDocument(True)
        
        ' Use the serializer to write the start of the 
        ' object data. Use it again to write the object
        ' data. 
        ser.WriteStartObject(writer, p)
        writer.WriteStartAttribute("MyAttribute")
        writer.WriteString("My Text")
        writer.WriteEndAttribute()

        ser.WriteObjectContent(writer, p)
                
        ' Use the serializer to write the end of the 
        ' object data. Then use the writer to write the end
        ' of the document.
        ser.WriteEndObject(writer)
        writer.WriteEndDocument()
        
        Console.WriteLine("Done")
        
        ' Close and release the writer resources.
        writer.Flush()
        fs.Flush()
        fs.Close()
    
    End Sub

适用于

WriteStartObject(XmlWriter, Object)

使用 XmlWriter 写入开始 XML 元素。

public:
 override void WriteStartObject(System::Xml::XmlWriter ^ writer, System::Object ^ graph);

public override void WriteStartObject (System.Xml.XmlWriter writer, object graph);

override this.WriteStartObject : System.Xml.XmlWriter * obj -> unit

Public Overrides Sub WriteStartObject (writer As XmlWriter, graph As Object)

参数

writer: XmlWriter