/// <summary>
        /// get an instance of object
        /// </summary>
        /// <param name="myID"></param>
        public a_agenda_subcat getObjecta_agenda_subcat(System.Int32 myID)
        {
            a_agenda_subcat mya_agenda_subcat = new a_agenda_subcat();
            CnxBase         myBase            = new CnxBase();
            string          reqSQL            = "SELECT id_subcat,id_cat,nombre FROM a_agenda_subcat WHERE (id_subcat=" + myID + ")";

            try
            {
                NpgsqlConnection myConn    = myBase.OpenConnection(myBase.cnxString);
                NpgsqlCommand    myCommand = new NpgsqlCommand(reqSQL, myConn);
                NpgsqlDataReader myReader  = myCommand.ExecuteReader();
                if (myReader.Read())
                {
                    mya_agenda_subcat.id_subcat = Convert.ToInt32(myReader[0]);
                    mya_agenda_subcat.id_cat    = Convert.ToInt32(myReader[1]);
                    mya_agenda_subcat.nombre    = myReader[2].ToString();
                }
                myBase.CloseConnection(myConn);
            }
            catch (Exception myErr)
            {
                throw(new Exception(myErr.ToString() + reqSQL));
            }
            return(mya_agenda_subcat);
        }
        /// <summary>
        /// add a record
        /// </summary>
        /// <param name="myID"></param>
        public void Insert(a_agenda_subcat mya_agenda_subcat)
        {
            CnxBase myBase = new CnxBase();
            string  reqSQL = "INSERT INTO a_agenda_subcat (id_cat,nombre) VALUES (" + mya_agenda_subcat.id_cat + ",'" + mya_agenda_subcat.nombre + "')";

            try
            {
                NpgsqlConnection myConn    = myBase.OpenConnection(myBase.cnxString);
                NpgsqlCommand    myCommand = new NpgsqlCommand(reqSQL, myConn);
                myCommand.ExecuteNonQuery();
                myBase.CloseConnection(myConn);
            }
            catch (Exception myErr)
            {
                throw(new Exception(myErr.ToString() + reqSQL));
            }
        }
        /// <summary>
        /// modify a record
        /// </summary>
        public void Update(a_agenda_subcat mya_agenda_subcat)
        {
            CnxBase myBase = new CnxBase();
            string  reqSQL = "UPDATE a_agenda_subcat SET id_subcat=" + mya_agenda_subcat.id_subcat + ",id_cat=" + mya_agenda_subcat.id_cat + ",nombre='" + mya_agenda_subcat.nombre + "' WHERE (id_subcat=" + mya_agenda_subcat.id_subcat + ")";

            try
            {
                NpgsqlConnection myConn    = myBase.OpenConnection(myBase.cnxString);
                NpgsqlCommand    myCommand = new NpgsqlCommand(reqSQL, myConn);
                myCommand.ExecuteNonQuery();
                myBase.CloseConnection(myConn);
            }
            catch (Exception myErr)
            {
                throw(new Exception(myErr.ToString() + reqSQL));
            }
        }