Using Switches to Control Debug and Trace: TraceSwitch : Debug « Development « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Development
3. Debug

// compile with: csc /r:system.dll file_1.cs
using System;
using System.Diagnostics;

class MyClass
{
    public MyClass(int i)
    {
        this.i = i;
    }
    
    [Conditional("DEBUG")]
    public void VerifyState()
    {
        Debug.WriteLineIf(debugOutput.TraceInfo, "VerifyState Start");
        
        Debug.WriteLineIf(debugOutput.TraceVerbose, "Starting field verification");
        
        if (debugOutput.TraceInfo)
        Debug.WriteLine("VerifyState End");
    }
    
    static TraceSwitch debugOutput =  new TraceSwitch("MyClassDebugOutput", "Control debug output");
    int i = 0;
}

class MainClass
{
    public static void Main()
    {
        Debug.Listeners.Clear();
        Debug.Listeners.Add(new TextWriterTraceListener(Console.Out));
        MyClass c = new MyClass(1);
        
        c.VerifyState();
    }
}