添加项目文件。

Converters/InverseBooleanConverter.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Globalization;
+using System.Windows.Data;
+
+namespace ASTM_D7896_Tester.Converters;
+
+[ValueConversion(typeof(bool), typeof(bool))]
+public class InverseBooleanConverter : IValueConverter
+{
+    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        if (value is bool b)
+            return !b;
+        return false;
+    }
+
+    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        if (value is bool b)
+            return !b;
+        return false;
+    }
+}