获取枚举的描述和列表实例

 enum Direction
        {
            [Description("this means facing to UP (Negtive Y)")]
            UP = 1,
            [Description("this means facing to RIGHT (Positive X)")]
            RIGHT = 2,
            [Description("this means facing to DOWN (Positive Y)")]
            DOWN = 3,
            [Description("this means facing to LEFT (Negtive X)")]
            LEFT = 4
        };

  public static String GetEnumDesc(Enum e)
        {
            FieldInfo EnumInfo = e.GetType().GetField(e.ToString());
            DescriptionAttribute[] EnumAttributes = (DescriptionAttribute[])EnumInfo.
                GetCustomAttributes(typeof(DescriptionAttribute), false);
            if (EnumAttributes.Length > 0)
            {
                return EnumAttributes[0].Description;
            }
            return e.ToString();
        }


  /// <summary>
        /// 枚举转ListItem
        /// </summary>
        private static List<ListItem> GetEnumList(Type enumType)
        {
            List<ListItem> lst = new List<ListItem>();

            foreach (int value in Enum.GetValues(enumType))
            {
                string name = Enum.GetName(enumType, value);
                ListItem listitem = new ListItem(GetDescription(enumType, name), value.ToString());
                lst.Add(listitem);
            }
            return lst;
        }
 
 
调用实例:

　　　　　　//获取描述
　　　　　　Response.Write(GetEnumDesc(Direction.LEFT)); 
 
　　　　　　//获取列表
          Type temp = typeof(Direction);
          DropDownList1.DataSource = GetEnumList(temp);
          DropDownList1.DataBind();