NetDataContractSerializer.WriteStartObject 方法

定义

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

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。

正在序列化的实例有问题。

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 WriteStartObjectWriteObjectContentWriteEndObject 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

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

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。

正在序列化的实例有问题。

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

适用于