using System.Globalization; using Avalonia; using Avalonia.Data.Converters; namespace Ursa.Controls; public class TimelineFormatConverter: IMultiValueConverter { public object Convert(IList values, Type targetType, object? parameter, CultureInfo culture) { if (values.Count> 1 && values[0] is DateTime date && values[1] is string s) { return date.ToString(s, culture); } return AvaloniaProperty.UnsetValue; } }