using System; using System.Linq; using System.Windows.Data; namespace WPFluent.Converters; internal class BooleanAllConverter : IMultiValueConverter { public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture) => values.OfType( ) .All(b => b); public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture) => throw new NotImplementedException( ); }