枚举EnumHelper

using System.ComponentModel;
using System.Reflection;

namespace MEAS.Common
{
    public class EnumHelper
    {
        //定义一个用于保存静态变量的实例
        private static EnumHelper instance = null;
        //定义一个保证线程同步的标识
        private static readonly object locker = new object();
        //构造函数为私有，使外界不能创建该类的实例
        private EnumHelper() { }
        public static EnumHelper Instance
        {
            get
            {
                if (instance == null)
                {
                    lock (locker)
                    {
                        if (instance == null) instance = new EnumHelper();
                    }
                }
                return instance;
            }
        }

        public string GetEnumDescription(System.Enum enumValue)
        {
            string value = enumValue.ToString();
            FieldInfo field = enumValue.GetType().GetField(value);
            object[] objs = field.GetCustomAttributes(typeof(DescriptionAttribute), false);  //获取描述属性
            if (objs == null || objs.Length == 0)  //当描述属性没有时，直接返回名称
                return value;
            DescriptionAttribute descriptionAttribute = (DescriptionAttribute)objs[0];
            return descriptionAttribute.Description;
        }

    }
}