Demonstrates debug output : Trace Listener « Development « C# / CSharp Tutorial

#define DEBUG

using System;
using System.Globalization;
using System.Diagnostics;

class MainClass
{
  public static void Main() 
  {
    TextWriterTraceListener tl = new TextWriterTraceListener(Console.Out);
    Debug.Listeners.Add(tl);

    Debug.WriteLine("Starting Main()");

    Debug.Assert(1 == 2, "1==2");

    Debug.WriteLine("Exiting Main()");
  }
}

Starting Main()
Fail: 1==2
Exiting Main()

14.27.Trace Listener
	14.27.1.	Add DefaultTraceListener to Trace
	14.27.2.	Add ConsoleTraceListener to Trace
	14.27.3.	Clear Trace Listener and Add EventLogTraceListener
	14.27.4.	Demonstrates debug output
	14.27.5.	Add TextWriterTraceListener to Debug Listener
	14.27.6.	Post-deployment tracing
	14.27.7.	Write Trace based on the BooleanSwitch
	14.27.8.	Create a text writer that writes to the console screen and add it to the trace listeners
	14.27.9.	Implement a TextWriterTraceListener write to the console screen