/// <summary>
 /// Generates and writes the surrogate character entity for the surrogate character pair.
 /// </summary>
 /// <param name="lowChar">The low surrogate. This must be a value between 0xDC00 and 0xDFFF.</param>
 /// <param name="highChar">The high surrogate. This must be a value between 0xD800 and 0xDBFF.</param>
 public override void WriteSurrogateCharEntity(char lowChar, char highChar)
 {
     _innerWriter.WriteSurrogateCharEntity(lowChar, highChar);
     if (_tracingWriter != null)
     {
         _tracingWriter.WriteSurrogateCharEntity(lowChar, highChar);
     }
 }
 public override void WriteSurrogateCharEntity(char lowChar, char highChar)
 {
     _innerWriter.WriteSurrogateCharEntity(lowChar, highChar);
 }