source: extensions/PiwigoLib/PiwigoLib/DTO/Helper/PwgEnumHelper.cs @ 7149

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Reflection;
using System.ComponentModel;
using System.Xml.Serialization;

namespace Com.Piwigo.Lib.DTO.Helper
{
    internal static class PwgEnumHelper<T>
    {
        internal static string stringValueOf(T value)
        {
            FieldInfo fi = value.GetType().GetField(value.ToString());
            XmlEnumAttribute[] attributes = (XmlEnumAttribute[])fi.GetCustomAttributes(typeof(XmlEnumAttribute), false);
            if (attributes.Length > 0)
            {
                return attributes[0].Name;
            }
            else
            {
                return value.ToString();
            }
        }

        internal static T enumValueOf(string value)
        {
            Type enumType = typeof(T);
            Array values = Enum.GetValues(enumType);
            foreach (T enumValue in values)
            {
                if (stringValueOf(enumValue).Equals(value))
                {
                    return enumValue;
                }
            }

            throw new ArgumentException("The string is not a description or value of the specified enum.");
        }
    }
}