/// <summary> /// 更新一条数据(所有字段) /// </summary> public int Update(DBHelper myHelperMySQL, Fm.Entity.log model, string strWhere) { StringBuilder strSql = new StringBuilder(); strSql.Append("update log set "); strSql.Append(" id = @id , "); strSql.Append(" Writer = @Writer , "); strSql.Append(" ProjectName = @ProjectName , "); strSql.Append(" Content = @Content , "); strSql.Append(" CreateTime = @CreateTime "); MySqlParameter[] parameters = { new MySqlParameter("@id", model.id), new MySqlParameter("@Writer", model.Writer), new MySqlParameter("@ProjectName", model.ProjectName), new MySqlParameter("@Content", model.Content), new MySqlParameter("@CreateTime", model.CreateTime) }; if (strWhere.Trim() != "") { strSql.Append(" where " + strWhere); } int rows = myHelperMySQL.ExecuteNonQuery(strSql.ToString(), parameters); return(rows); }
/// <summary> /// 得到一个对象实体(List类型),数据连接类用myHelperMySQL(非静态) /// 表:MessageBoard /// <param name="myHelperMySQL">myHelperMySQL实例(数据访问类).</param> /// <param name="Top">记录数.</param> /// <param name="filedSelect">自定义字段.</param> /// <param name="strWhere">条件.</param> /// <param name="filedOrder">排序字段.</param> /// <param name="parameters">参数(若条件中未使用参数可为null).</param> /// </summary> public List <Fm.Entity.log> GetList(DBHelper myHelperMySQL, int Top, string filedSelect, string strWhere, string filedOrder, MySqlParameter[] parameters) { StringBuilder strSql = new StringBuilder(); strSql.Append("select "); //自定义字段 strSql.Append(" " + filedSelect); strSql.Append(" FROM log a "); if (strWhere.Trim() != "") { strSql.Append(" WHERE " + strWhere); } if (filedOrder.Trim() != "") { strSql.Append(" ORDER BY " + filedOrder); } if (Top > 0) { strSql.Append(" limit " + Top.ToString()); } List <Fm.Entity.log> myList = new List <Fm.Entity.log>(); using (MySqlDataReader dr = myHelperMySQL.ExecuteReader(strSql.ToString(), parameters)) { while (dr.Read()) { Fm.Entity.log model = new Fm.Entity.log(); if (filedSelect.ToLower().Split(',').Where(x => x.Trim() == "a.id").Count() > 0) { if (dr["id"].ToString() != "") { model.id = int.Parse(dr["id"].ToString()); } } if (filedSelect.ToLower().Split(',').Where(x => x.Trim() == "a.writer").Count() > 0) { model.Writer = dr["Writer"].ToString(); } if (filedSelect.ToLower().Split(',').Where(x => x.Trim() == "a.projectname").Count() > 0) { model.ProjectName = dr["ProjectName"].ToString(); } if (filedSelect.ToLower().Split(',').Where(x => x.Trim() == "a.content").Count() > 0) { model.Content = dr["Content"].ToString(); } if (filedSelect.ToLower().Split(',').Where(x => x.Trim() == "a.createtime").Count() > 0) { model.CreateTime = dr["CreateTime"].ToString(); } myList.Add(model); } dr.Close(); } return(myList); }
/// <summary> /// 增加一条数据 /// </summary> public void Add(DBHelper myHelperMySQL, Fm.Entity.log model) { StringBuilder strSql = new StringBuilder(); strSql.Append("insert into log("); strSql.Append("id,Writer,ProjectName,Content,CreateTime"); strSql.Append(") values ("); strSql.Append("@id,@Writer,@ProjectName,@Content,@CreateTime"); strSql.Append(") "); MySqlParameter[] parameters = { new MySqlParameter("@id", model.id), new MySqlParameter("@Writer", model.Writer), new MySqlParameter("@ProjectName", model.ProjectName), new MySqlParameter("@Content", model.Content), new MySqlParameter("@CreateTime", model.CreateTime) }; myHelperMySQL.ExecuteNonQuery(strSql.ToString(), parameters); }