/// <summary>
        /// Constructor
        /// </summary>
        public RequirementDataMapping()
        {
            //First we need to get the application roaming settings folder
            string appDataFolder = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + @"\Inflectra\" + DATA_FOLDER;

            //If it doesn't exist, create it
            if (!Directory.Exists(appDataFolder))
            {
                Directory.CreateDirectory(appDataFolder);
            }

            //Now see if the DataSet xml exists
            this.mappingDataFile        = appDataFolder + @"\" + DATA_FILE;
            this.requirementMappingData = new RequirementMappingData();
            if (File.Exists(mappingDataFile))
            {
                //Read in the data
                requirementMappingData.ReadXml(mappingDataFile, System.Data.XmlReadMode.Auto);
            }
            else
            {
                //Write out the empty data set
                requirementMappingData.WriteXml(mappingDataFile);
            }
        }