ShrlAlgoToolkit/ShrlAlgoToolkit.RevitAddins/Converters/EnumDescriptionExtension.cs

using System.ComponentModel;
using System.Windows.Markup;

namespace ShrlAlgoToolkit.RevitAddins.Converters
{
    public class EnumDescriptionExtension : MarkupExtension
    {
        private readonly object _enumValue;

        public EnumDescriptionExtension(object enumValue)
        {
            _enumValue = enumValue;
        }

        public override object ProvideValue(IServiceProvider serviceProvider)
        {
            if (_enumValue == null) return string.Empty;

            var field = _enumValue.GetType().GetField(_enumValue.ToString());
            var attribute = field?.GetCustomAttributes(typeof(DescriptionAttribute), false)
                            .FirstOrDefault() as DescriptionAttribute;

            return attribute?.Description ?? _enumValue.ToString();
        }
    }
}