C#中Enum的用法

1.定义枚举类型

 public enum Test

    {

        男 = 0,

        女 = 1

    }

2.获取枚举值

public void EnumsAction()

        {

            var s = Test.男;//男

            var s2 = (int)Test.男;//0

            var a = Test.男.ToString();//"男"

            var r = (Test)1;//女

            var x = (Test)Enum.Parse(typeof(Test), "男");//男

            var x2 = Enum.Parse(typeof(Test), "男");//男

            var x3 = Enum.GetName(typeof(Test),0);//"男"

            foreach (var item in Enum.GetValues(typeof(Test)))

            {

                var v = item;//男[女]

                var v2 = (int)item;//0[1]

                var t = item.GetType();//{Name = "Test" FullName = "BaseControl.Enum.Test"}

                var g = item.ToString();//"男"["女"]

            }

        }

3.Enum Helper的使用

public static class EnumHelper

    {

        /// <summary>

        /// 根据枚举的值获取枚举名称

        /// </summary>

        /// <typeparam name="T">枚举类型</typeparam>

        /// <param name="status">枚举的值</param>

        /// <returns></returns>

        public static string GetEnumName<T>(this int status)

        {

            return Enum.GetName(typeof(T), status);

        }

        /// <summary>

        /// 获取枚举名称集合

        /// </summary>

        /// <typeparam name="T"></typeparam>

        /// <returns></returns>

        public static string[] GetNamesArr<T>()

        {

            return Enum.GetNames(typeof(T));

        }

        /// <summary>

        /// 将枚举转换成字典集合

        /// </summary>

        /// <typeparam name="T">枚举类型</typeparam>

        /// <returns></returns>

        public static Dictionary<string, int> getEnumDic<T>()

        {

            Dictionary<string, int> resultList = new Dictionary<string, int>();

            Type type = typeof(T);

            var strList = GetNamesArr<T>().ToList();

            foreach (string key in strList)

            {

                string val = Enum.Format(type, Enum.Parse(type, key), "d");

                resultList.Add(key, int.Parse(val));

            }

            return resultList;

        }

        /// <summary>

        /// 将枚举转换成字典

        /// </summary>

        /// <typeparam name="TEnum"></typeparam>

        /// <returns></returns>

        public static Dictionary<string, int> GetDic<TEnum>()

        {

            Dictionary<string, int> dic = new Dictionary<string, int>();

            Type t = typeof(TEnum);

            var arr = Enum.GetValues(t);

            foreach (var item in arr)

            {

                dic.Add(item.ToString(), (int)item);

            }

            return dic;

        }

    }

public static class EnumHelper

    {

///获取description信息

        public static string GetDescription(Enum value)

        {

            if (value == null)

            {

                throw new ArgumentException("value");

            }

            string description = value.ToString();

            var fieldInfo = value.GetType().GetField(description);

            var attributes =

                (EnumDescriptionAttribute[])fieldInfo.GetCustomAttributes(typeof(EnumDescriptionAttribute), false);

            if (attributes != null && attributes.Length > 0)

            {

                description = attributes[0].Description;

            }

            return description;

        }

public static string GetEnumDescription2(Enum enumValue)

{

    var field = enumValue.GetType().GetField(enumValue.ToString());

    var objs = field.GetCustomAttribute(typeof(DescriptionAttribute));

    var descriptionAttribute = (DescriptionAttribute)objs;

    return descriptionAttribute.Description;

}

    }

转载：https://www.cnblogs.com/lee07/p/15726013.html

C#中Enum的用法的相关教程结束。