XmlWriter.Close Metoda

Definice

Při přepsání v odvozené třídě zavře tento datový proud a podkladový datový proud.When overridden in a derived class, closes this stream and the underlying stream.

public:
 virtual void Close();
public:
 abstract void Close();
public virtual void Close ();
public abstract void Close ();
abstract member Close : unit -> unit
override this.Close : unit -> unit
abstract member Close : unit -> unit
Public Overridable Sub Close ()
Public MustOverride Sub Close ()

Výjimky

Bylo provedeno volání pro zápis většího výstupu po Close volání nebo výsledek tohoto volání je neplatný dokument XML.A call is made to write more output after Close has been called or the result of this call is an invalid XML document.

-nebo--or-

XmlWriterMetoda byla volána před dokončením předchozí asynchronní operace.An XmlWriter method was called before a previous asynchronous operation finished. V tomto případě InvalidOperationException je vyvolána se zprávou "asynchronní operace již probíhá".In this case, InvalidOperationException is thrown with the message "An asynchronous operation is already in progress."

Příklady

Následující příklad zapisuje uzel XML.The following example writes an XML node.

#using <System.Xml.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
int main()
{
   
   // Create a writer to write XML to the console.
   XmlWriterSettings^ settings = gcnew XmlWriterSettings;
   settings->Indent = true;
   settings->OmitXmlDeclaration = true;
   XmlWriter^ writer = XmlWriter::Create( Console::Out, settings );
   
   // Write the book element.
   writer->WriteStartElement( L"book" );
   
   // Write the title element.
   writer->WriteStartElement( L"title" );
   writer->WriteString( L"Pride And Prejudice" );
   writer->WriteEndElement();
   
   // Write the close tag for the root element.
   writer->WriteEndElement();
   
   // Write the XML and close the writer.
   writer->Close();
   return 1;
}

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;
     settings.OmitXmlDeclaration = true;
     XmlWriter writer = XmlWriter.Create(Console.Out, settings);

     // Write the book element.
     writer.WriteStartElement("book");

     // Write the title element.
     writer.WriteStartElement("title");
     writer.WriteString("Pride And Prejudice");
     writer.WriteEndElement();

     // Write the close tag for the root element.
     writer.WriteEndElement();

     // Write the XML 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
     settings.OmitXmlDeclaration = true
     Dim writer As XmlWriter = XmlWriter.Create(Console.Out, settings)

     ' Write the book element.
     writer.WriteStartElement("book")
        
     ' Write the title element.
     writer.WriteStartElement("title")
     writer.WriteString("Pride And Prejudice")
     writer.WriteEndElement()
        
     ' Write the close tag for the root element.
     writer.WriteEndElement()
        
     ' Write the XML and close the writer.
     writer.Close()

  End Sub
End Class

Poznámky

Všechny elementy nebo atributy otevřené vlevo se automaticky zavřou.Any elements or attributes left open are automatically closed.

Poznámka

Použijete-li XmlWriter metody pro výstup jazyka XML, prvky a atributy nebudou zapsány, dokud nebudete volat Close metodu.When you use the XmlWriter methods to output XML, the elements and attributes will not be written until you call the Close method. Například pokud používáte XmlWriter k naplnění XmlDocument , dokud nezavřete, nebudete XmlWriter moci sledovat zapsané prvky a atributy v cílovém dokumentu.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.

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