src/Library/NetPro.Web.Api/Helper/EnumHelper.cs

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using System;
using System.ComponentModel;
using System.NetPro;
using System.Reflection;

namespace NetPro.Web.Api
{
    /// <summary>
    /// 枚举操作
    /// </summary>
    internal static class EnumHelper
    {
        /// <summary>
        /// 获取实例
        /// </summary>
        /// <typeparam name="TEnum">枚举类型</typeparam>
        /// <param name="member">成员名或值,范例:Enum1枚举有成员A=0,则传入"A"或"0"获取 Enum1.A</param>
        public static TEnum Parse<TEnum>(object member)
        {
            string value = member.SafeString();
            if (string.IsNullOrWhiteSpace(value))
            {
                if (typeof(TEnum).IsGenericType)
                    return default(TEnum);
                throw new ArgumentNullException(nameof(member));
            }
            return (TEnum)Enum.Parse(CommonHelper.GetType<TEnum>(), value, true);
        }

        /// <summary>
        /// 获取成员名
        /// </summary>
        /// <typeparam name="TEnum">枚举类型</typeparam>
        /// <param name="member">成员名、值、实例均可,范例:Enum1枚举有成员A=0,则传入Enum1.A或0,获取成员名"A"</param>
        public static string GetName<TEnum>(object member)
        {
            return GetName(CommonHelper.GetType<TEnum>(), member);
        }

        /// <summary>
        /// 获取成员名
        /// </summary>
        /// <param name="type">枚举类型</param>
        /// <param name="member">成员名、值、实例均可</param>
        public static string GetName(Type type, object member)
        {
            if (type == null)
                return string.Empty;
            if (member == null)
                return string.Empty;
            if (member is string)
                return member.ToString();
            if (type.GetTypeInfo().IsEnum == false)
                return string.Empty;
            return Enum.GetName(type, member);
        }

        /// <summary>
        /// 获取成员值
        /// </summary>