using Microsoft.UI.Xaml.Data; using System; namespace MangaReader.WinUI.Converters; public partial class UppercaseConverter : IValueConverter { public object? Convert(object value, Type targetType, object parameter, string language) { if (value == null) return null; return value.ToString().ToUpperInvariant(); } public object ConvertBack(object value, Type targetType, object parameter, string language) { throw new NotImplementedException(); } }