/// <summary> /// 更新一条数据 /// </summary> public bool Update(TSIMSServer.Model.t_book_order model) { StringBuilder strSql = new StringBuilder(); strSql.Append("update t_book_order set "); strSql.Append("isbn=@isbn,"); strSql.Append("user_num=@user_num"); strSql.Append(" where id=@id"); MySqlParameter[] parameters = { new MySqlParameter("@isbn", MySqlDbType.VarChar, 50), new MySqlParameter("@user_num", MySqlDbType.VarChar, 50), new MySqlParameter("@id", MySqlDbType.Int32, 11) }; parameters[0].Value = model.isbn; parameters[1].Value = model.user_num; parameters[2].Value = model.id; int rows = DbHelperMySQL.ExecuteSql(strSql.ToString(), parameters); if (rows > 0) { return(true); } else { return(false); } }
/// <summary> /// 增加一条数据 /// </summary> public bool Add(TSIMSServer.Model.t_book_order model) { StringBuilder strSql = new StringBuilder(); strSql.Append("insert into t_book_order("); strSql.Append("isbn,user_num)"); strSql.Append(" values ("); strSql.Append("@isbn,@user_num)"); MySqlParameter[] parameters = { new MySqlParameter("@isbn", MySqlDbType.VarChar, 50), new MySqlParameter("@user_num", MySqlDbType.VarChar, 50) }; parameters[0].Value = model.isbn; parameters[1].Value = model.user_num; int rows = DbHelperMySQL.ExecuteSql(strSql.ToString(), parameters); if (rows > 0) { return(true); } else { return(false); } }
/// <summary> /// 得到一个对象实体 /// </summary> public TSIMSServer.Model.t_book_order DataRowToModel(DataRow row) { TSIMSServer.Model.t_book_order model = new TSIMSServer.Model.t_book_order(); if (row != null) { if (row["id"] != null && row["id"].ToString() != "") { model.id = int.Parse(row["id"].ToString()); } if (row["isbn"] != null) { model.isbn = row["isbn"].ToString(); } if (row["user_num"] != null) { model.user_num = row["user_num"].ToString(); } } return(model); }
/// <summary> /// 得到一个对象实体 /// </summary> public TSIMSServer.Model.t_book_order GetModel(int id) { StringBuilder strSql = new StringBuilder(); strSql.Append("select id,isbn,user_num from t_book_order "); strSql.Append(" where id=@id"); MySqlParameter[] parameters = { new MySqlParameter("@id", MySqlDbType.Int32) }; parameters[0].Value = id; TSIMSServer.Model.t_book_order model = new TSIMSServer.Model.t_book_order(); DataSet ds = DbHelperMySQL.Query(strSql.ToString(), parameters); if (ds.Tables[0].Rows.Count > 0) { return(DataRowToModel(ds.Tables[0].Rows[0])); } else { return(null); } }