// Method used to retrieve last unique ID from tables
        private static string getLastUniqueID(string table, string uniqueId)
        {
            string lastUniqueKey = null;

            System.Data.DataSet dataset = new System.Data.DataSet();
            if ((table != null) && (uniqueId != null))
            {
                string queryString = "SELECT TOP 1 " + uniqueId + " FROM " + table + " ORDER BY " + uniqueId + " DESC";
                try
                {
                    dataset = DatabaseConnectionHandler.executeSelectQuery(queryString, null);

                    if (dataset != null)
                    {
                        foreach (System.Data.DataRow row in dataset.Tables[0].Rows)
                        {
                            lastUniqueKey = row[uniqueId.ToUpper()].ToString();
                        }
                    }
                }
                catch (Exception ex) { Console.WriteLine(ex.Message); }
            }
            return(lastUniqueKey);
        }