Export (0) Print
Expand All

TextWriterTraceListener.TextWriterTraceListener(Stream, String) Constructor

Initializes a new instance of the TextWriterTraceListener class with the specified name, using the stream as the recipient of the debugging and tracing output.

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

public TextWriterTraceListener (
	Stream stream,
	string name
)
public TextWriterTraceListener (
	Stream stream, 
	String name
)
public function TextWriterTraceListener (
	stream : Stream, 
	name : String
)
Not applicable.

Parameters

stream

A Stream that represents the stream the TextWriterTraceListener writes to.

name

The name of the new instance.

Exception typeCondition

ArgumentNullException

The stream is a null reference (Nothing in Visual Basic).

This constructor initializes the Name property to the name parameter or to an empty string (""), if the name parameter is a null reference (Nothing in Visual Basic).

The following code example creates a TextWriterTraceListener using the TextWriterTraceListener(Stream,String) constructor and adds it to the TraceListenerCollection. The example then writes two messages to this TextWriterTraceListener and writes a message to all TraceListener objects in the TraceListenerCollection. Finally, it flushes and closes the TextWriterTraceListener.

using System;
using System.Diagnostics;
using System.IO;
using Microsoft.VisualBasic;

class TWTLConStreamNameMod
{

    const string LISTENER_NAME = "myStreamListener";

    // args(0) is the specification of the trace log file.
    public static void Main(string[] args)
    {

        // Verify that a parameter was entered.
        if (args.Length==0)
        {
            Console.WriteLine("Enter a trace file specification.");

        }
        else
        {
            // Create a stream object.
            FileStream traceStream;
            try
            {
                traceStream = new FileStream(args[0], FileMode.Append, FileAccess.Write);
            }
            catch(Exception ex)
            {
                Console.WriteLine("Error creating FileStream for trace file \"{0}\":" +
                    "\r\n{1}", args[0], ex.Message);
                return;
            }

            // Create a TextWriterTraceListener object that takes a stream.
            TextWriterTraceListener textListener;
            textListener = new TextWriterTraceListener(traceStream, LISTENER_NAME);
            Trace.Listeners.Add(textListener);

            // Write these messages only to the TextWriterTraceListener.
            textListener.WriteLine("This is trace listener named \""+textListener.Name+"\"");
            textListener.WriteLine("Trace written through a stream to: " +
                "\r\n    \""+args[0]+"\"");

            // Write a message to all trace listeners.
            Trace.WriteLine(String.Format("This trace message written {0} to all listeners.", DateTime.Now));

            // Flush and close the output.
            Trace.Flush();
            textListener.Flush();
            textListener.Close();
        }
    }
}

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, 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

XNA Framework

Supported in: 1.0

Community Additions

ADD
Show:
© 2014 Microsoft