枚舉命名規范同類，示例如下：
~~~
/// <summary>
/// 用戶排序
/// </summary>
public enum UserOrderBy
{
/// <summary>
/// 創建時間正序
/// </summary>
[Display(Name = "創建時間正序")]
CreationTime,
/// <summary>
/// 創建時間倒序
/// </summary>
[Display(Name = "創建時間倒序")]
CreationTimeDesc,
/// <summary>
/// 最后登錄時間正序
/// </summary>
[Display(Name = "最后登錄時間正序")]
LastLoginTime,
/// <summary>
/// 最后登錄時間倒序
/// </summary>
[Display(Name = "最后登錄時間倒序")]
LastLoginTimeDesc
}
~~~
