反射：获取枚举类型的Name,Value,Description

Posted 2020-09-11 _IT小野人

[Obsolete("请使用新的方法XXX")] //使用Obsolete特性来告诉使用者这是一个过期的方法 
        private static void Test()
        {
            Type t = typeof(ApprovalStatus);
            var fields = t.GetFields();
            foreach (var item in fields)
            {
                if (!item.IsSpecialName)
                {
                    var attr = item.GetCustomAttribute(typeof(DescriptionAttribute), false);
                    string attribute = "";
                    if (attr != null)
                        attribute = ((DescriptionAttribute)attr).Description;
                    Console.WriteLine($"Description:{attribute}\\tName:{item.Name}\\tValue:{item.GetRawConstantValue()}");
                }
            }

            Console.ReadKey();
        }
　　

　　

 枚举类：

    /// <summary>
    /// 表示审批状态的枚举类
    /// </summary>
    enum ApprovalStatus
    {
        /// <summary>
        /// ?
        /// </summary>
        [Description("")]
        NoUse = 0,

        /// <summary>
        /// 未提交
        /// </summary>
        [Description("未提交")]
        NoSubmit = 1,

        /// <summary>
        /// 审核中
        /// </summary>
        [Description("审核中")]
        OnApprovaling = 2,

        /// <summary>
        /// 待生效
        /// </summary>
        [Description("待生效")]
        OnEffecting = 3,

        /// <summary>
        /// 已生效
        /// </summary>
        [Description("已生效")]
        Effected = 4,

        /// <summary>
        /// 拒绝
        /// </summary>
        [Description("拒绝")]
        Reject = 5,

        /// <summary>
        /// 撤销
        /// </summary>
        [Description("撤销")]
        Undo = 6
    }　

　效果：