GenderCodeToSymbol.cs

using System.Globalization;
using NeuroAccessMaui.Services.Data;
 
namespace NeuroAccessMaui.UI.Converters
{
    public class GenderCodeToSymbol : IValueConverter, IMarkupExtension
    {
        public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
        {
            ISO_5218_Gender? Rec;
 
            if (value is string s)
            {
                if (ISO_5218.LetterToGender(s.ToUpper(CultureInfo.InvariantCulture), out Rec) && Rec is not null)
                    return new string(Rec.Unicode, 1);
                else if (int.TryParse(s, out int i) && ISO_5218.CodeToGender(i, out Rec) && Rec is not null)
                    return new string(Rec.Unicode, 1);
                else
                    return s;
            }
            else if (value is int Code && ISO_5218.CodeToGender(Code, out Rec) && Rec is not null)
                return new string(Rec.Unicode, 1);
            else
                return value ?? string.Empty;
        }
 
        public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
        {
            return value?.ToString() ?? string.Empty;
        }
 
        public object ProvideValue(IServiceProvider serviceProvider)
        {
            return this;
        }
    }
}