/// <summary> /// 得到一个对象实体 /// </summary> public DXD.Model.city_list DataRowToModel(DataRow row) { DXD.Model.city_list model = new DXD.Model.city_list(); if (row != null) { if (row["id"] != null && row["id"].ToString() != "") { model.id = int.Parse(row["id"].ToString()); } if (row["country_id"] != null && row["country_id"].ToString() != "") { model.country_id = int.Parse(row["country_id"].ToString()); } if (row["city_name"] != null) { model.city_name = row["city_name"].ToString(); } if (row["order_no"] != null && row["order_no"].ToString() != "") { model.order_no = int.Parse(row["order_no"].ToString()); } if (row["add_user"] != null) { model.add_user = row["add_user"].ToString(); } if (row["add_time"] != null && row["add_time"].ToString() != "") { model.add_time = DateTime.Parse(row["add_time"].ToString()); } } return(model); }
/// <summary> /// 增加一条数据 /// </summary> public int Add(DXD.Model.city_list model) { StringBuilder strSql = new StringBuilder(); strSql.Append("insert into city_list("); strSql.Append("country_id,city_name,order_no,add_user,add_time)"); strSql.Append(" values ("); strSql.Append("@city_name,@order_no,@add_user,@add_time)"); strSql.Append(";select LAST_INSERT_ROWID()"); SQLiteParameter[] parameters = { new SQLiteParameter("@country_id", DbType.Int32, 8), new SQLiteParameter("@city_name", DbType.String, 50), new SQLiteParameter("@order_no", DbType.Int32, 8), new SQLiteParameter("@add_user", DbType.String, 50), new SQLiteParameter("@add_time", DbType.DateTime) }; parameters[0].Value = model.country_id; parameters[1].Value = model.city_name; parameters[2].Value = model.order_no; parameters[3].Value = model.add_user; parameters[4].Value = model.add_time; object obj = DbHelperSQLite.GetSingle(strSql.ToString(), parameters); if (obj == null) { return(0); } else { return(Convert.ToInt32(obj)); } }
/// <summary> /// 更新一条数据 /// </summary> public bool Update(DXD.Model.city_list model) { StringBuilder strSql = new StringBuilder(); strSql.Append("update city_list set "); strSql.Append("country_id=@country_id,"); strSql.Append("city_name=@city_name,"); strSql.Append("order_no=@order_no,"); strSql.Append("add_user=@add_user,"); strSql.Append("add_time=@add_time"); strSql.Append(" where id=@id"); SQLiteParameter[] parameters = { new SQLiteParameter("@country_id", DbType.Int32, 8), new SQLiteParameter("@city_name", DbType.String, 50), new SQLiteParameter("@order_no", DbType.Int32), new SQLiteParameter("@add_user", DbType.String, 50), new SQLiteParameter("@add_time", DbType.DateTime), new SQLiteParameter("@id", DbType.Int32, 8) }; parameters[0].Value = model.country_id; parameters[1].Value = model.city_name; parameters[2].Value = model.order_no; parameters[3].Value = model.add_user; parameters[4].Value = model.add_time; parameters[5].Value = model.id; int rows = DbHelperSQLite.ExecuteSql(strSql.ToString(), parameters); if (rows > 0) { return(true); } else { return(false); } }
/// <summary> /// 得到一个对象实体 /// </summary> public DXD.Model.city_list GetModel(int id) { StringBuilder strSql = new StringBuilder(); strSql.Append("select id,country_id,city_name,order_no,add_user,add_time from city_list "); strSql.Append(" where id=@id"); SQLiteParameter[] parameters = { new SQLiteParameter("@id", DbType.Int32, 4) }; parameters[0].Value = id; DXD.Model.city_list model = new DXD.Model.city_list(); DataSet ds = DbHelperSQLite.Query(strSql.ToString(), parameters); if (ds.Tables[0].Rows.Count > 0) { return(DataRowToModel(ds.Tables[0].Rows[0])); } else { return(null); } }