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