XmlWriter.WriteEndElement XmlWriter.WriteEndElement XmlWriter.WriteEndElement XmlWriter.WriteEndElement Method

定義

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。When overridden in a derived class, closes one element and pops the corresponding namespace scope.

public:
 abstract void WriteEndElement();
public abstract void WriteEndElement ();
abstract member WriteEndElement : unit -> unit
Public MustOverride Sub WriteEndElement ()

例外狀況

這會導致無效的 XML 文件。This results in an invalid XML document.

-或--or-

在先前的非同步作業完成前呼叫了 XmlWriter 方法。An XmlWriter method was called before a previous asynchronous operation finished. 在此情況下,會擲回 InvalidOperationException 與「非同步作業已經在進行中」的訊息。In this case, InvalidOperationException is thrown with the message "An asynchronous operation is already in progress."

範例

下列範例會使用WriteEndElement WriteFullEndElement和方法。The following example uses the WriteEndElement and the WriteFullEndElement methods.

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 'Sample

備註

如果元素未包含任何內容,則會寫入簡短結束標記 "/>";否則,就會寫入完整的結束標記。If the element contains no content, a short end tag "/>" is written; otherwise, a full end tag is written.

注意

當您使用XmlWriter方法來輸出 XML 時,除非您Close呼叫方法,否則不會寫入元素和屬性。When you use the XmlWriter methods to output XML, the elements and attributes will not be written until you call the Close method. 例如,如果您使用 XmlWriter 填入XmlDocument,直到您XmlWriter關閉為止,您將無法觀察目的檔案中的寫入專案和屬性。For example, if you are using the XmlWriter to populate an XmlDocument, until you close the XmlWriter, you will not be able to observe the written elements and attributes in the target document.

如需這個方法的非同步版本,請WriteEndElementAsync參閱。For the asynchronous version of this method, see WriteEndElementAsync.

適用於