Treat as if it is never set when last spectrum is set as 0.

Author: zhaoheting-zontal

RawFileParser.cs

@@ -148,10 +148,10 @@ private static void ProcessFile(ParseInput parseInput)
                     lastScanNumber = rawFile.RunHeaderEx.LastSpectrum;
 
                     // Check for empty file
-                    if (lastScanNumber < 1)
-                    {
-                        throw new RawFileParserException("Empty RAW file, no output will be produced");
-                    }
+                    //if (lastScanNumber < 1)
+                    //{
+                        //throw new RawFileParserException("Empty RAW file, no output will be produced");
+                    //}
                 }
 
                 if (parseInput.MetadataFormat != MetadataFormat.NONE)

Writer/MzMlSpectrumWriter.cs

@@ -466,7 +466,7 @@ public override void Write(IRawDataPlus rawFile, int firstScanNumber, int lastSc
                 _writer.WriteEndElement(); // spectrumList                                                
 
                 index = 0;
-                var chromatograms = ConstructChromatograms(firstScanNumber, lastScanNumber);
+                var chromatograms = ConstructChromatograms();
                 if (!chromatograms.IsNullOrEmpty())
                 {
                     // ChromatogramList
@@ -841,7 +841,7 @@ private void Serialize<T>(XmlSerializer serializer, T t)
         /// <param name="firstScanNumber">the first scan number</param>
         /// <param name="lastScanNumber">the last scan number</param>
         /// <returns>a list of chromatograms</returns>
-        private List<ChromatogramType> ConstructChromatograms(int firstScanNumber, int lastScanNumber)
+        private List<ChromatogramType> ConstructChromatograms()
         {
             var chromatograms = new List<ChromatogramType>();