更新setting

CSI-H238M/CSI-H238M/Views/SettingsPage.xaml.cs

@@ -22,11 +22,20 @@ namespace COFTester.Views
     {
         public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
         {
-            if (values.Length < 3 || values[0] == null || values[1] == null || values[2] == null)
+            // 检查是否有足够的值
+            if (values == null || values.Length < 3)
+                return "-";
+
+            // 检查是否有 UnsetValue 或 null
+            if (values[0] == System.Windows.DependencyProperty.UnsetValue || 
+                values[1] == System.Windows.DependencyProperty.UnsetValue ||
+                values[2] == System.Windows.DependencyProperty.UnsetValue)
+                return "-";
+
+            // 安全地转换布尔值
+            if (!(values[0] is bool direction1) || !(values[1] is bool direction2))
                 return "-";
 
-            bool direction1 = (bool)values[0];
-            bool direction2 = (bool)values[1];
             var lang = LanguageResources.Instance;
             string directionType = parameter as string ?? "";