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Debug.Flush Method

Flushes the output buffer and causes buffered data to write to the Listeners collection.

Namespace: System.Diagnostics
Assembly: System (in system.dll)

[ConditionalAttribute("DEBUG")] 
public static void Flush ()
/** @attribute ConditionalAttribute("DEBUG") */ 
public static void Flush ()
ConditionalAttribute("DEBUG") 
public static function Flush ()
Not applicable.

Flushing the stream will not flush its underlying encoder unless you explicitly call Flush or Close. Setting AutoFlush to true means that data will be flushed from the buffer to the stream, but the encoder state will not be flushed. This allows the encoder to keep its state (partial characters) so that it can encode the next block of characters correctly. This scenario affects UTF8 and UTF7 where certain characters can only be encoded after the encoder receives the adjacent character or characters.

The following example creates a TextWriterTraceListener named myTextListener. myTextListener uses a StreamWriter called myOutputWriter to write to a file named TestFile.txt. The example creates the file, stream, and text writer, writes one line of text to the file, and then flushes and closes the output.

// Specify /d:DEBUG when compiling.

using System;
using System.IO;
using System.Diagnostics;

class Test
{
    static void Main()
    {
        // Create a file for output named TestFile.txt.
        using (FileStream myFileStream = 
            new FileStream("TestFile.txt", FileMode.Append))
        {
            // Create a new text writer using the output stream 
            // and add it to the trace listeners.
            TextWriterTraceListener myTextListener = 
                new TextWriterTraceListener(myFileStream);
            Debug.Listeners.Add(myTextListener);
          
            // Write output to the file.
            Debug.WriteLine("Test output");
         
            // Flush and close the output stream.
            Debug.Flush();
            Debug.Close();
        }
    }
}

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0

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