using System.Globalization;

using System.Windows.Data;

namespace GView;

/* Used

* https://learn.microsoft.com/en-us/dotnet/desktop/wpf/data/how-to-convert-bound-data?view=netframeworkdesktop-4.8

*/

[ValueConversion(typeof(ulong), typeof(string))]

public class UlongToStringConverter : IValueConverter

{

public object Convert(object value, Type targetType, object parameter, CultureInfo culture)

{

if (value is not ulong)

return value;

return ((ulong) value == 0

? string.Empty

: value.ToString())

?? string.Empty;

}

public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)

{

if (value is not string || ReferenceEquals(value, string.Empty))

return value;

string? str = value.ToString();

return str != null ? ulong.Parse(str) : value;

}

}