获取枚举Name,Value,Description两种方法

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.ComponentModel;
using System.Reflection;

public partial class EnumTest : System.Web.UI.Page
{
/// <summary>
/// 调用获得Name,Value,Description方法
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Page_Load(object sender, EventArgs e)
{
List<EnumModel> modelFirst = MethodOne_GetEnumModel<MyEnum>();
List<EnumModel> modelSecond = MethodTow_GetEnumModel<MyEnum>();
foreach (EnumModel enumModel in modelFirst)
{
Response.Write("枚举Name:" + enumModel.Name + " লল Value: " + enumModel.Value + " ললDescription:" + enumModel.Description + "<br/><br/>");
}
}

/// <summary>
/// 用于测试的枚举
/// </summary>
public enum MyEnum
{
[Description("这是第一个枚举值得描述MyTestA")]
MyA = 0,

[Description("这是第二个枚举值的描述MyTestB")]
MyB = 1,

[Description("这是第三个枚举值的描述MyTestC")]
MyC = 2
}

/// <summary>
/// 用于保存枚举值Name,Value,Description的类
/// </summary>
public class EnumModel
{
public string Description { get; set; }
public string Name { get; set; }
public int Value { get; set; }
}

/// <summary>
/// MethodOne获取枚举的Name,Value,Description
/// </summary>
/// <typeparam name="T"></typeparam>
/// <returns></returns>
public List<EnumModel> MethodOne_GetEnumModel<T>()
{
List<EnumModel> listEnumModel = new List<EnumModel>();

#region
/*
* 表示类型声明，类类型，接口类型，数组类型，值类型，枚举类型，类型参数，泛型类型定义，以及开放或封闭构造的泛型。
*/
#endregion
Type type = typeof(T);
#region
/*
* FieldInfo http://msdn.microsoft.com/zh-cn/library/system.reflection.fieldinfo(v=vs.95).aspx
*
*/
#endregion
FieldInfo[] fieldInfos = type.GetFields();
foreach (FieldInfo fieldInfo in fieldInfos)
{
EnumModel enumModel = new EnumModel();
if (!fieldInfo.IsSpecialName)
{
enumModel.Name = fieldInfo.Name;
enumModel.Value = ((T)Enum.Parse(type, fieldInfo.Name)).GetHashCode();

DescriptionAttribute[] enumAttributeList = (DescriptionAttribute[])fieldInfo.GetCustomAttributes(typeof(DescriptionAttribute), false);
if (enumAttributeList != null && enumAttributeList.Length > 0)
{
enumModel.Description = enumAttributeList[0].Description;
}
else
{
enumModel.Description = fieldInfo.Name;
}

/*
* 下面的方法也可以获得枚举的描述
dynamic dy = fieldInfo.GetCustomAttributes(typeof(DescriptionAttribute), false);
if (dy != null && dy.Length>0)
{
enumModel.Description = dy[0].Description;
}
else
{
enumModel.Description = fieldInfo.Name;
}
*/

listEnumModel.Add(enumModel);
}
}
return listEnumModel;
}

/// <summary>
/// MethodTwo获取枚举的Name,Value,Description
/// </summary>
/// <typeparam name="T"></typeparam>
/// <returns></returns>
public List<EnumModel> MethodTow_GetEnumModel<T>()
{
List<EnumModel> listEnumModel = new List<EnumModel>() { };
EnumModel enumModel;
Type type = typeof(T);
foreach (string item in Enum.GetNames(type))
{
enumModel = new EnumModel();
enumModel.Name = item;
FieldInfo fieldInfo = type.GetField(item);
//enumModel.Value = ((T)Enum.Parse(type, item)).GetHashCode();
enumModel.Value = fieldInfo.GetValue(item).GetHashCode();
DescriptionAttribute[] enumAttributeList = (DescriptionAttribute[])fieldInfo.GetCustomAttributes(typeof(DescriptionAttribute), false);
if (enumAttributeList != null && enumAttributeList.Length > 0)
{
enumModel.Description = enumAttributeList[0].Description;
}
else
{
enumModel.Description = item;
}

/*
* 下面的方法也可以获得枚举的描述
dynamic dy = fieldInfo.GetCustomAttributes(typeof(DescriptionAttribute), false);
if (dy != null && dy.Length>0)
{
enumModel.Description = dy[0].Description;
}
else
{
enumModel.Description = fieldInfo.Name;
}
*/

listEnumModel.Add(enumModel);
}
return listEnumModel;
}

}