CultureData for showing culture information in a tree control

CultureData.cs

public class CultureData
{
    public CultureInfo CultureInfo { get; set; }
    public IList<CultureData> SubCultures { get; set; }
    private double _numberSample = 9876543.21;
    public string NumberSample => _numberSample.ToString("N", CultureInfo);
    public string DateSample => DateTime.Today.ToString("D", CultureInfo);
    public string TimeSample => DateTime.Now.ToString("T", CultureInfo);
    public RegionInfo RegionInfo
    {
        get
        {
            try
            {
                return new RegionInfo(CultureInfo.Name);
            }
            catch (ArgumentException)
            {
                // with some neutral cultures regions are not available
                return null;
            }
        }
    }
}