c# log each msg with line number + thread id

This method conveniently logs to console, IDE output window and log4net

It also logs the file name, method name and line number of top 2 levels on the call stack

        public static void Info(Object o, bool isStackTraceNeeded = false)
        {
            /*According to MSDN:
             * An operating-system ThreadId has no fixed relationship to a managed thread, because an unmanaged host
             * can control the relationship between managed and unmanaged threads. Specifically, a sophisticated host
             * can use the CLR Hosting API to schedule many managed threads against the same operating system thread,
             * or to move a managed thread between different operating system threads.
             */
            var winThrId = AppDomain.GetCurrentThreadId();
            var thId = "/T" + Thread.CurrentThread.ManagedThreadId + "/" + winThrId + "/ ";

            #region locator
            StackTrace stackTrace = new StackTrace(fNeedFileInfo:true);
            var frames = stackTrace.GetFrames();

            StringBuilder locator = new StringBuilder(StackFrameToStr(frames[1]));
            if (frames.Length > 2)
                locator.Append(StackFrameToStr(frames[2]));
         
            var locator2 = "{" + locator.ToString().Trim() + "}";
            var msg = thId + locator2 + (o ?? "_nul_");
            #endregion

            if (isStackTraceNeeded) msg += "\n" + stackTrace;

            log4n.Debug(msg);
            //System.Diagnostics.Trace.Write("Trace is possible as well.");
            System.Diagnostics.Debug.WriteLine(msg);
            Console.WriteLine(msg);
            return;
        }

        public static string StackFrameToStr(StackFrame f)
        {
            return Path.GetFileNameWithoutExtension(f.GetFileName()) + "." + f.GetMethod().Name + "." +f.GetFileLineNumber() + " ";
        }
    }