StackFrame Constructor (String, Int32)

public void Level3Method()
{
   try 
   {
      ClassLevel4 nestedClass = new ClassLevel4();
      nestedClass.Level4Method();
   }
   catch (Exception e) 
   {
      Console.WriteLine(" Level3Method exception handler");

      // Build a stack trace from a dummy stack frame.
      // Explicitly specify the source file name and 
      // line number.
      StackTrace st = new StackTrace(new StackFrame("source.cs", 60));
      Console.WriteLine(" Stack trace with dummy stack frame: {0}", 
                  st.ToString());
      for(int i =0; i< st.FrameCount; i++ )
      {
         // Display the stack frame properties.
         StackFrame sf = st.GetFrame(i);
         Console.WriteLine(" File: {0}", sf.GetFileName());
         Console.WriteLine(" Line Number: {0}", 
            sf.GetFileLineNumber());
         // Note that the column number defaults to zero
         // when not initialized.
         Console.WriteLine(" Column Number: {0}", 
            sf.GetFileColumnNumber());
         if (sf.GetILOffset() != StackFrame.OFFSET_UNKNOWN)
         {
            Console.WriteLine(" Intermediate Language Offset: {0}", 
               sf.GetILOffset());
         }
         if (sf.GetNativeOffset() != StackFrame.OFFSET_UNKNOWN)
         {
            Console.WriteLine(" Native Offset: {0}", 
               sf.GetNativeOffset());
         }
      }
      Console.WriteLine();
      Console.WriteLine("   ... throwing exception to next level ...");
      Console.WriteLine("-------------------------------------------------\n");
      throw e;
   }
}