Use Trace Switch : Trace : Development C# Examples

    
using  System;
using  System.Diagnostics;

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

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

    }
}


/*
<?xml  version="1.0"  encoding="utf-8"  ?>  
<configuration>
        <system.diagnostics>
                <switches>
                        <add  name="General"  value="1"  />

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