How can i change the output format of TextWriterTraceListener?

the default implementation shows the output as ': : ', now i dont want this format, i want to cut off the sourcename and eventid because it' s totally useless for me. is there any easy way i can accomplis开发者_开发问答h that?

my current workaround is to derive from TextWriterTraceListener and override the TrackEvent method. use reflector to copy the default implementation and just remove the writerHeader function call.

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you can create derived class from TextWriterTraceListener and override TraceEvent to change output format. It would be better to override all TraceEvent methods. e.g.

class TextWriterTraceListenerCustomOutput:TextWriterTraceListener
{
    public TextWriterTraceListenerCustomOutput(string fileName):base(fileName)
    {
    }

    public override void Write(string message)
    {
        base.Write(String.Format("[{0}]:{1}",DateTime.Now,message));
    }

    public override void WriteLine(string message)
    {
        base.WriteLine(String.Format("[{0}]:{1}", DateTime.Now, message));
    }

    public override void TraceEvent(TraceEventCache eventCache, string source, TraceEventType eventType, int id, string message)
    {
        //base.TraceEvent(eventCache, source, eventType, id, message);
        if(String.IsNullOrEmpty(message)) return;
        WriteLine(String.Format("{0}:{1}:{2}:{3}",source, eventType,Enum.GetName(typeof(LogId),id),message.Replace("\r",string.Empty).Replace("\n",string.Empty)));
    }
}