public UntypedMarkupData(IFragment fragment, UntypedMarkupDataValueRetriever valueRetriever)
 {
     if (initializerString == null)
     {
         throw Utils.ArgumentNullException("initializerString");
     }
     if (valueRetriever == null)
     {
         throw Utils.ArgumentNullException("valueRetriever");
     }
     this.Fragment       = fragment;
     this.ValueRetriever = valueRetriever;
 }
		public UntypedMarkupData(IFragment fragment, UntypedMarkupDataValueRetriever valueRetriever) {
			if (initializerString == null) throw Utils.ArgumentNullException("initializerString");
			if (valueRetriever == null) throw Utils.ArgumentNullException("valueRetriever");
			this.Fragment       = fragment;
			this.ValueRetriever = valueRetriever;
		}