XmlWriter.WriteEndElement 方法

定義

命名空間:

System.Xml

組件:

System.Xml.ReaderWriter.dll

組件:

System.Xml.dll

組件:

netstandard.dll

在衍生類別中覆寫時，關閉一個項目並取出對應的命名空間範圍。

public:
 abstract void WriteEndElement();

public abstract void WriteEndElement ();

abstract member WriteEndElement : unit -> unit

Public MustOverride Sub WriteEndElement ()

例外狀況

InvalidOperationException

這會導致無效的 XML 文件。

-或-

在先前的非同步作業完成前呼叫了 XmlWriter 方法。 在此情況下，會擲回 InvalidOperationException 與「非同步作業已經在進行中」的訊息。

範例

下列範例會使用 WriteEndElement 和 WriteFullEndElement 方法。

using System;
using System.IO;
using System.Xml;

public class Sample {

  public static void Main() {

     // Create a writer to write XML to the console.
     XmlWriterSettings settings = new XmlWriterSettings();
     settings.Indent = true;
     XmlWriter writer = XmlWriter.Create(Console.Out, settings);

     // Write the root element.
     writer.WriteStartElement("order");

     // Write an element with attributes.
     writer.WriteStartElement("item");
     writer.WriteAttributeString("date", "2/19/01");
     writer.WriteAttributeString("orderID", "136A5");

     // Write a full end element. Because this element has no
     // content, calling WriteEndElement would have written a
     // short end tag '/>'.
     writer.WriteFullEndElement();

     writer.WriteEndElement();

     // Write the XML to file and close the writer
     writer.Close();
  }
}

Option Explicit
Option Strict

Imports System.IO
Imports System.Xml

Public Class Sample
    
  Public Shared Sub Main()

     ' Create a writer to write XML to the console.
     Dim settings As XmlWriterSettings = new XmlWriterSettings()
     settings.Indent = true
     Dim writer As XmlWriter = XmlWriter.Create(Console.Out, settings)
        
     ' Write the root element.
     writer.WriteStartElement("order")
        
     ' Write an element with attributes.
     writer.WriteStartElement("item")
     writer.WriteAttributeString("date", "2/19/01")
     writer.WriteAttributeString("orderID", "136A5")
        
     ' Write a full end element. Because this element has no
     ' content, calling WriteEndElement would have written a
     ' short end tag '/>'.
     writer.WriteFullEndElement()
        
     writer.WriteEndElement()

     ' Write the XML to file and close the writer
     writer.Close()

    End Sub
End Class

備註

如果專案不包含任何內容，則會寫入簡短的標籤 「/>」 ;否則，會寫入完整結束標記。

注意

當您使用 XmlWriter 方法來輸出 XML 時，除非您呼叫 Close 方法，否則不會寫入元素和屬性。 例如，如果您使用 XmlWriter 來填入 XmlDocument ，直到您關閉 XmlWriter 為止，您將無法觀察目的檔案中的寫入元素和屬性。

如需這個方法的非同步版本，請參閱 WriteEndElementAsync 。