/// <summary> /// get an instance of object /// </summary> /// <param name="myID"></param> public s_central getObjects_central(System.Int32 myID) { s_central mys_central = new s_central(); CnxBase myBase = new CnxBase(); string reqSQL = "SELECT id_central,nombre,telefono FROM s_central WHERE (id_central=" + myID + ")"; try { NpgsqlConnection myConn = myBase.OpenConnection(myBase.cnxString); NpgsqlCommand myCommand = new NpgsqlCommand(reqSQL, myConn); NpgsqlDataReader myReader = myCommand.ExecuteReader(); if (myReader.Read()) { mys_central.id_central = Convert.ToInt32(myReader[0]); mys_central.nombre = myReader[1].ToString(); mys_central.telefono = myReader[2].ToString(); } myBase.CloseConnection(myConn); } catch (Exception myErr) { throw(new Exception(myErr.ToString() + reqSQL)); } return(mys_central); }
/// <summary> /// add a record /// </summary> /// <param name="myID"></param> public void adds_central(s_central mys_central) { CnxBase myBase = new CnxBase(); string reqSQL = "INSERT INTO s_central (id_central,nombre,telefono) VALUES (" + mys_central.id_central + ",'" + mys_central.nombre + "','" + mys_central.telefono + "')"; 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 modifys_central(s_central mys_central) { CnxBase myBase = new CnxBase(); string reqSQL = "UPDATE s_central SET id_central=" + mys_central.id_central + ",nombre='" + mys_central.nombre + "',telefono='" + mys_central.telefono + "' WHERE (id_central=" + mys_central.id_central + ")"; 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)); } }