C# MVC 枚举转 SelectListItem

<span style="font-size: 18px; font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"></span><pre name="code" class="csharp">

public static class EnumKit
   {
       #region 根据枚举生成下拉列表数据源
       /// <summary>
       /// 根据枚举生成下拉列表的数据源
       /// </summary>
       /// <param name="enumType">枚举类型</param>
       /// <param name="firstText">第一行文本(一般用于查询。例如：全部/请选择)</param>
       /// <param name="firstValue">第一行值(一般用于查询。例如：全部/请选择的值)</param>
       /// <returns></returns>
       public static IList<SelectListItem> ToSelectList(Type enumType
           , string firstText = "请选择"
           , string firstValue = "-1")
       {
           IList<SelectListItem> listItem = new List<SelectListItem>();

           if (enumType.IsEnum)
           {
               AddFirst(listItem, firstText, firstValue);

               Array values = Enum.GetValues(enumType);
               if (null != values && values.Length > 0)
               {
                   foreach (int item in values)
                   {
                       listItem.Add(new SelectListItem { Value = item.ToString(), Text = Enum.GetName(enumType, item) });
                   }
               }
           }
           else
           {
               throw new ArgumentException("请传入正确的枚举！");
           }
           return listItem;
       }

       static void AddFirst(IList<SelectListItem> listItem, string firstText, string firstValue)
       {
           if (!string.IsNullOrWhiteSpace(firstText))
           {
               if (string.IsNullOrWhiteSpace(firstValue))
                   firstValue = "-1";
               listItem.Add(new SelectListItem { Text = firstText, Value = firstValue });
           }
       }

       /// <summary>
       /// 根据枚举的描述生成下拉列表的数据源
       /// </summary>
       /// <param name="enumType"></param>
       /// <returns></returns>
       public static IList<SelectListItem> ToSelectListByDesc(
           Type enumType
           , string firstText = "请选择"
           , string firstValue = "-1"
           )
       {
           IList<SelectListItem> listItem = new List<SelectListItem>();

           if (enumType.IsEnum)
           {
               AddFirst(listItem, firstText, firstValue);
               string[] names = Enum.GetNames(enumType);
               names.ToList().ForEach(item =>
               {
                   string description = string.Empty;
                   var field = enumType.GetField(item);
                   object[] arr = field.GetCustomAttributes(typeof(DescriptionAttribute), true); //获取属性字段数组
                   description = arr != null && arr.Length > 0 ? ((DescriptionAttribute)arr[0]).Description : item;   //属性描述

                   listItem.Add(new SelectListItem() { Value = ((int)Enum.Parse(enumType, item)).ToString(), Text = description });
               });
           }
           else
           {
               throw new ArgumentException("请传入正确的枚举！");
           }
           return listItem;
       }
       #endregion

       #region 获取枚举的描述

       /// <summary>
       /// 获取枚举的描述信息
       /// </summary>
       /// <param name="enumValue">枚举值</param>
       /// <returns>描述</returns>
       public static string GetDescription(this Enum enumValue)
       {
           string value = enumValue.ToString();
           FieldInfo field = enumValue.GetType().GetField(value);
           object[] objs = field.GetCustomAttributes(typeof(System.ComponentModel.DescriptionAttribute), false);
           if (objs == null || objs.Length == 0) return value;
           System.ComponentModel.DescriptionAttribute attr = (System.ComponentModel.DescriptionAttribute)objs[0];
           return attr.Description;
       }

       #endregion
   }

<span style="font-size: 18px; font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);">
</span>

<span style="font-size: 18px; font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);">调用代码：</span>

public ActionResult Index()
       {
           IList<SelectListItem> listItem = EnumKit.ToSelectList(typeof(OrderStatus), "全部");
           ViewBag.SelectListItem = listItem;


           IList<SelectListItem> SelectListItemDesc = EnumKit.ToSelectListByDesc(typeof(OrderStatus));
           ViewBag.SelectListItemDesc = SelectListItemDesc;


           // 获取描述特性的值
           string sendHuo = OrderStatus.发货.GetDescription();

           return View();
       }