prs/prs.desktop/TestConverter.cs

using System.Windows;
using InABox.Wpf;
using InABox.WPF;
using Syncfusion.UI.Xaml.Maps;

namespace PRSDesktop;

public class TestConverter : AbstractConverter<MapMarker,string>
{
    public override string Convert(MapMarker value)
    {
        return (value as MapMarker)?.Label ?? "??";
    }
}