public WaveLengthOperationNode(string content)
 {
     ParentNode = null;
     Operation  = null;
     Content    = content;
     Operation  = new WaveLengthOperation();
     WaveLengthOperation.Name = content;
 }
 public WaveLengthOperationNode(WaveLengthOperation waveLengthOperation)
 {
     Operation  = waveLengthOperation;
     ParentNode = null;
 }