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TextWriterTraceListener.Close Method

Closes the Writer so that it no longer receives tracing or debugging output.

Namespace:  System.Diagnostics
Assembly:  System (in System.dll)
public override void Close()

Calling a Write or WriteLine method after calling Close automatically reopens the stream.

The following example implements a TextWriterTraceListener named myTextListener, which 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 stream.

#define TRACE

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

public class TextWriterTraceListenerSample
{
    public static void Main() 
    {
        TextWriterTraceListener myTextListener = null;

        // Create a file for output named TestFile.txt.
        String myFileName = "TestFile.txt";
        StreamWriter myOutputWriter = new StreamWriter(myFileName, true);

        // Add a TextWriterTraceListener for the file.
        myTextListener = new TextWriterTraceListener(myOutputWriter);
        Trace.Listeners.Add(myTextListener);


        // Write trace output to all trace listeners.
        Trace.WriteLine(DateTime.Now.ToString() + " - Trace output");

        // Remove and close the file writer/trace listener.
        myTextListener.Flush();
        Trace.Listeners.Remove(myTextListener);
        myTextListener.Close();
    }
}

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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