public void Initialize()
        {
            //Deserialize data from JSON files into member variables.
            #region JSON deserialization - Course

            string jsonFilebackup = "CourseJSON.txt";

            FileStream reader = new FileStream(jsonFilebackup, FileMode.Open, FileAccess.Read);

            DataContractJsonSerializer inputSerializer;
            inputSerializer = new DataContractJsonSerializer(typeof(CourseCollection));

            courses = (CourseCollection)inputSerializer.ReadObject(reader);
            reader.Close();
            #endregion
        }
 //*******************************************************
 //Method:  DataLayer
 //
 //Purpose:  Default constructor for DataLayer
 //*******************************************************
 public DataLayer()
 {
     courses = new CourseCollection();
 }