public static string ToDisplayString(this Enum value)
{
    if (value == null)
    {
        throw new ArgumentNullException("value");
    }

    string description = value.ToString();
    EnumDescriptionAttribute[] attributes = (EnumDescriptionAttribute[])value.GetType().GetCustomAttributes(typeof(EnumDescriptionAttribute), false);

    if (attributes != null && attributes.Length > 0)
    {
        Type resourceType = attributes[0].ResourceType;

        if (resourceType != null)
        {
            var property = resourceType.GetProperty(description);
            if (property != null)
            {
                var propertyValue = property.GetValue(null);

                if (propertyValue != null)
                {
                    description = propertyValue.ToString();
                }
            }
        }
    }
    return description;
}