string GetSeries()
        {
            SeriesManager oManager = new SeriesManager();
            string sSeries = "";
            string sPrefix = "";
            int digitNo = 0;
            string _objectType = "Collection";

            oManager.ConnectionString = this.ConnectionString;
            oManager.Open();
            sSeries = oManager.GetNewSeries(_objectType);
            sPrefix = oManager.GetPrefix(_objectType);
            digitNo = Convert.ToInt16(oManager.GetDigit(_objectType));
            oManager.Close();

            return sPrefix + String.Format("{0:D5}", Convert.ToInt16(sSeries));
        }
        string GetSeries()
        {
            SeriesManager oManager = new SeriesManager();
            string sSeries = "";
            string sPrefix = "";
            int digitNo = 0;
            string _objectType = "Payment";

            oManager.ConnectionString = this.ConnectionString;
            oManager.Open();
            sSeries = oManager.GetNewSeries(_objectType);
            sPrefix = oManager.GetPrefix(_objectType);
            digitNo = Convert.ToInt16(oManager.GetDigit(_objectType));
            oManager.Close();

            return sPrefix +  sSeries;
        }