Flush Method
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XmlWriter.Flush Method ()

 

When overridden in a derived class, flushes whatever is in the buffer to the underlying streams and also flushes the underlying stream.

Namespace:   System.Xml
Assembly:  System.Xml (in System.Xml.dll)

public abstract void Flush()

Exception Condition
InvalidOperationException

An XmlWriter method was called before a previous asynchronous operation finished. In this case, InvalidOperationException is thrown with the message “An asynchronous operation is already in progress.”

This is called instead of Close when you want to write more to the underlying stream without losing what is still in the buffer.

For the asynchronous version of this method, see FlushAsync.

The following example writes two XML fragments.

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

public class Sample {

  public static void Main() {

     // Create an XmlWriter to write XML fragments.
     XmlWriterSettings settings = new XmlWriterSettings();
     settings.ConformanceLevel = ConformanceLevel.Fragment;
     settings.Indent = true;
     XmlWriter writer = XmlWriter.Create(Console.Out, settings);

     // Write an XML fragment.
     writer.WriteStartElement("book");
     writer.WriteElementString("title", "Pride And Prejudice");
     writer.WriteEndElement();
     writer.Flush();

     // Write another XML fragment.
     writer.WriteStartElement("cd");
     writer.WriteElementString("title", "Americana");
     writer.WriteEndElement();
     writer.Flush();  

     // Close the writer.
     writer.Close();
  }
}

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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