packages/MaterialDesignThemes.2.5.1/src/net45/Converters/BooleanToVisibilityConverter.cs

（完整代码） 869B 

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

namespace MaterialDesignThemes.Wpf.Converters
{
    public class BooleanToVisibilityConverter : IValueConverter
    {
        public Visibility TrueValue { get; set; } = Visibility.Visible;
        public Visibility FalseValue { get; set; } = Visibility.Collapsed;
        
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            bool bValue = false;
            if (value is bool)
            {
                bValue = (bool)value;
            }

            return (bValue) ? TrueValue : FalseValue;
        }
        
        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            return value as Visibility? == TrueValue;
        }
    }
}

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