kmpdfkit_demo/Demo/Examples/Compdfkit.Controls/Common/Convert/AndMultiBoolValueConverter.cs

using System;
using System.Globalization;
using System.Linq;
using System.Windows;
using System.Windows.Data;

namespace ComPDFKit.Controls.Common
{
    public class AndMultiBoolValueConverter : IMultiValueConverter
    {
        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
        {
            if (values != null && values.All(v => v is bool boolValue))
            {
                return values.Cast<bool>().All(v => v);
            }
            return DependencyProperty.UnsetValue; 
        }

        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
        {
            return Enumerable.Repeat(DependencyProperty.UnsetValue, targetTypes.Length).ToArray();
        }
    }
    
    public class OrMultiBoolValueConverter : IMultiValueConverter
    {
        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
        {
            if (values != null && values.All(v => v is bool boolValue))
            {
                return values.Cast<bool>().Any(v => v);
            }
            return DependencyProperty.UnsetValue; 
        }

        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
        {
            return Enumerable.Repeat(DependencyProperty.UnsetValue, targetTypes.Length).ToArray();
        }
    }
}