Use Trace Switch defined in config file : Trace « Development « C# / CSharp Tutorial

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2. Development
3. Trace

using System;
using System.Diagnostics;

class TracingExample
{
  static void Main(string[] args)
  {
    TraceSwitch MyComponent = new TraceSwitch("MyComponent", "Application Switch");

    Trace.WriteLineIf(MyComponent.TraceError, "MyComponent - Error Tracing Enabled");
    Trace.WriteLineIf(MyComponent.TraceWarning, "MyComponent - Warning Tracing Enabled");
    Trace.WriteLineIf(MyComponent.TraceInfo, "MyComponent - Info Tracing Enabled");
    Trace.WriteLineIf(MyComponent.TraceVerbose, "MyComponent - Verbose Tracing Enabled");
  }
}


/*
<?xml version="1.0" encoding="utf-8" ?> 
<configuration>
    <system.diagnostics>
        <switches>
            <add name="MyComponent" value="3" />

        </switches>
    </system.diagnostics>
</configuration>
*/