Creating-WL8-DataSets-with-a-command-line-app

CODE:
      static void ReadXmlDataSet(FileInfo inputFile, ref SortedSet<string> symbols, bool flagDuplicates)
      {
         if (inputFile.Exists)
         {
            XmlSerializer xs = new XmlSerializer(typeof(DataSet));
            StreamReader sr = new StreamReader(inputFile.OpenRead());
            DataSet dataSet = (DataSet)xs.Deserialize(sr);
            sr.Close();

            char[] delimiters = new char[] {','};
            foreach (string symbol in dataSet.DSString.Split(delimiters, StringSplitOptions.RemoveEmptyEntries))
               if (!symbols.Add(symbol) && flagDuplicates)
                  Console.WriteLine(string.Format("Duplicate symbol {0} found in dataset: {1}", symbol, inputFile.Name));
         }
      }

      static void WriteXmlDataSet(FileInfo outputFile, SortedSet<string> symbols)
      {
            DataSet dataSet = new DataSet
            {
                Name = Path.GetFileNameWithoutExtension(outputFile.Name),
                BarInterval = "0", //no intraday divisions
                Scale = "Daily", //daily bars
                ProviderName = "IQFeedStaticProvider",
                DSString = String.Join(",", symbols) //concatenate symbol list
            };
            XmlSerializer xs = new XmlSerializer(typeof(DataSet));
         StreamWriter sw = new StreamWriter(outputFile.Create()); //overwrite any existing file
            xs.Serialize(sw, dataSet);
         sw.Close();
      }

      [XmlRoot(IsNullable = false)]
      [XmlType(AnonymousType = true)]
      public class DataSet
      {
         [XmlElement(Form = System.Xml.Schema.XmlSchemaForm.Unqualified)]
         public string Name { get; set; }

         [XmlElement(Form = System.Xml.Schema.XmlSchemaForm.Unqualified)]
         public string Scale { get; set; }

         [XmlElement(Form = System.Xml.Schema.XmlSchemaForm.Unqualified)]
         public string BarInterval { get; set; }

         [XmlElement(Form = System.Xml.Schema.XmlSchemaForm.Unqualified)]
         public string DSString { get; set; }

         [XmlElement(Form = System.Xml.Schema.XmlSchemaForm.Unqualified)]
         public string ProviderName { get; set; }
      }

QUOTE:
... DataSet Provider API is missing info about DataSetFactory (or in general, a reference to FactoryBase methods) ...