NetDataContractSerializer.WriteStartObject 方法
定义
重要
一些信息与预发行产品相关,相应产品在发行之前可能会进行重大修改。 对于此处提供的信息,Microsoft 不作任何明示或暗示的担保。
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 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
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。