tracecaller.cs

         #region Utility

 #if TRACE
         private const string Traceformat = "\"{0}\",\"{1:yyyy-MM-dd HH:mm:ss.fffffff}\",\"{2}\",\"{3}\",\"{4}\"";
 #endif

         /// <summary>
         /// tarce.WriteLine前缀名,时间,成员名,文件名,行号。前缀缺省是“TC”，便于检索。
         /// </summary>
         /// <remarks>至少.NET Framework 4.5</remarks>
         [Conditional("TRACE")]
         public static void TraceCaller(
             [System.Runtime.CompilerServices.CallerMemberName]
             string memberName = "",
             [System.Runtime.CompilerServices.CallerFilePath]
             string filePath = "",
             [System.Runtime.CompilerServices.CallerLineNumber]
             int lineNumber = ,
             string prefix = "[TC] ")
         {
             Trace.WriteLine(string.Format(Traceformat, prefix, DateTime.Now, memberName, filePath, lineNumber));
         }

         #endregion