关于枚举取值

[小白_YY]

public enum HandleInd
{
[Description("已处理")]
Processed = 'Y',
[Description("未处理")]
Untreated = 'N'
}

怎么获取Description 和 值 'Y'

[zr2199]

HandleInd.Processed

[小白_YY]

Enum.Parse()
Enum.GetValues()
取的不 是'Y'

[liherun]

学习下

[babyofbaby]

先加一个枚举转换成键值对的方法：
public static NameValueCollection ConvertEnumDescriptionValue()
{

NameValueCollection nvc = new NameValueCollection();
Type type = typeof(DescriptionAttribute);

foreach (FieldInfo fi in typeof(HandleInd).GetFields())
{
object[] arr = fi.GetCustomAttributes(type, true);
if (arr.Length > 0)
{

nvc.Add(fi.Name, ((DescriptionAttribute)arr[0]).Description);
}
}

return nvc;

}

然后调用：
ConvertEnumDescriptionValue().GetValues(0)[0]，就取到“已处理”了，另一个类似。

要取"Y"，直接用(char)HandleInd.Processed

[wartim]

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace WindowsApplication212
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

            DescriptionAttribute DA = (DescriptionAttribute)this.GetType()
                .GetNestedType("HandleInd").GetField("Processed")
                .GetCustomAttributes(typeof(DescriptionAttribute), false)[0];
            MessageBox.Show(DA.Description);
        }

        public enum HandleInd
        {
            [Description("已处理")]
            Processed = 'Y',
            [Description("未处理")]
            Untreated = 'N'
        }
    }
}

[liherun]

wartim老大，又反射？

[liherun]

泛型和反射得好好学学了

[sdjmu]

同意5楼

[andyalex]

反射

[tangsan1985]

同样存在这样的问题，学习了

[bancxc]

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

namespace Attributes
{
    [AttributeUsage(AttributeTargets.All)]
    public class DescriptionAttribute : Attribute
    {
        private string Description;

        public DescriptionAttribute(string description)
        {
            Description = description;
        }
        public override string ToString()
        {
            return Description;
        }
    }
     
    public enum HandleInd
    {
        [Description("已处理")]
        Processed = 'Y',
        [Description("未处理")]
        Untreated = 'N'
    }

    public class MainClass
    {
        static void Main()
        {
            Type  t = typeof(HandleInd);
            
            foreach (MemberInfo  t1 in t.GetFields())
            {
                foreach (object attribute in t1.GetCustomAttributes(false))
                {
                    Console.WriteLine(attribute);   //已处理 未处理
                }
            }

            HandleInd h = HandleInd.Processed;            
            char a = (char)h;
            Console.WriteLine(a);  //Y

            h = HandleInd.Untreated;
             a= (char)h;
            Console.WriteLine(a); //N

            Console.ReadLine();
        }
    }
//已处理
//未处理
//Y
//N
}