XAML-Map-Control/MapControl/Shared/FilePath.cs

using System.IO;

namespace MapControl;

public static class FilePath
{
    public static string GetFullPath(string path)
    {
#if NETFRAMEWORK
        return Path.GetFullPath(path);
#else
        return Path.GetFullPath(path, System.AppDomain.CurrentDomain.BaseDirectory);
#endif
    }
}