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c#.nettracelistenertrace-listener

Get rid of the Project Name.vshost.exe from the Trace ouput


I have defined a Trace Listener on my console application like this

ConsoleTraceListener = new ConsoleTraceListener();
AutoFlush = true;
Listeners.Add(traceListener);

And then several Trace.TraceInformation calls through all my source code.

The point is that when I execute the code on the command line, I can see the following thing on each of the Traces:

  • MyNewSampleProject.vshost.exe Information: 0 : Starting...
  • MyNewSampleProject.vshost.exe Information: 0 : Creating Profile...

How can I get rid of the

MyNewSampleProject.vshost.exe Information: 0:.

I am just interested in knowing the message that I set in the Trace.

Thanks!


Solution

  • Unfortunately this seems not possible.

    I decompiled that listener and found, that there is no option to this. But there's still hope.

    You can implement your own Listener like this:

      public class MyListener : ConsoleTraceListener {
    
       public override void TraceEvent(TraceEventCache eventCache, string source, TraceEventType eventType, int id, string message) {
            if (this.Filter != null && !base.Filter.ShouldTrace(eventCache, source, eventType, id, message, null, null, null))
                return;
            this.WriteLine(message);
            this.WriteFooter(eventCache);
        }
    
        private bool IsEnabled(TraceOptions opts) {
            return (uint) (opts & this.TraceOutputOptions) > 0U;
        }
    
        private void WriteFooter(TraceEventCache eventCache) {
            if (eventCache == null)
                return;
            this.IndentLevel = this.IndentLevel + 1;
            if (this.IsEnabled(TraceOptions.ProcessId))
                this.WriteLine("ProcessId=" + (object) eventCache.ProcessId);
            if (this.IsEnabled(TraceOptions.LogicalOperationStack)) {
                this.Write("LogicalOperationStack=");
                Stack logicalOperationStack = eventCache.LogicalOperationStack;
                bool flag = true;
                foreach (object obj in logicalOperationStack) {
                    if (!flag)
                        this.Write(", ");
                    else
                        flag = false;
                    this.Write(obj.ToString());
                }
                this.WriteLine(string.Empty);
            }
            if (this.IsEnabled(TraceOptions.ThreadId))
                this.WriteLine("ThreadId=" + eventCache.ThreadId);
            if (this.IsEnabled(TraceOptions.DateTime))
                this.WriteLine("DateTime=" + eventCache.DateTime.ToString("o", (IFormatProvider) CultureInfo.InvariantCulture));
            if (this.IsEnabled(TraceOptions.Timestamp))
                this.WriteLine("Timestamp=" + (object) eventCache.Timestamp);
            if (this.IsEnabled(TraceOptions.Callstack))
                this.WriteLine("Callstack=" + eventCache.Callstack);
            this.IndentLevel = this.IndentLevel - 1;
        }
    }