using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Reflection;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            List<SelectListItem> test = ToSelectListItem(PaymentEnum.ByAmount);
            Console.ReadKey();
        }

        public static List<SelectListItem> ToSelectListItem(Enum valueEnum)
        {                    
            return (from int value in Enum.GetValues(valueEnum.GetType())
                    select new SelectListItem
                    {
                        Text = GetEnumDescription(xxx),//问题就是这里，
　　　　　　　　　　　　　　//我这里想把Text显示成枚举的description 但是参数不知道怎么写
                        Value = Enum.GetName(valueEnum.GetType(), value),
                        Selected = Enum.GetName(valueEnum.GetType(), value) == valueEnum.ToString() ? true : false
                    }).ToList();
        }

        public static string GetEnumDescription(Enum enumSubitem)
        {
            string strValue = enumSubitem.ToString();

            FieldInfo fieldinfo = enumSubitem.GetType().GetField(strValue);
            if (fieldinfo == null) return string.Empty;
            Object[] objs = fieldinfo.GetCustomAttributes(typeof(DescriptionAttribute), false);
            if (objs == null || objs.Length == 0)
            {
                return strValue;
            }
            else
            {
                DescriptionAttribute da = (DescriptionAttribute)objs[0];
                return da.Description;
            }
        }
    }



    public enum PaymentEnum
    {
        [Description("按日期")]
        ByDate,
        [Description("按票量")]
        ByTicket,
        [Description("按产量")]
        ByAmount
    }

    public class SelectListItem
    {
        public bool Selected { get; set; }
        public string Text { get; set; }
        public string Value { get; set; }
    }



}