From 33c7b50beb0ec895e94a625b6797315df22859e8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=9B=BE=E5=90=AF=E5=B7=A5=E4=BD=9C=E5=AE=A4?=
 <miao-moe@gmail.com>
Date: Sun, 28 Jun 2026 11:25:16 +0800
Subject: [PATCH] fix: ShowPage null reference when RadioButton.checked fires
 during XAML load

---
 Manager/MainWindow.xaml.cs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Manager/MainWindow.xaml.cs b/Manager/MainWindow.xaml.cs
index 841347e..0386e08 100644
--- a/Manager/MainWindow.xaml.cs
+++ b/Manager/MainWindow.xaml.cs
@@ -39,7 +39,10 @@ namespace BetterSeewo.Manager
         private void ShowPage(StackPanel page)
         {
             foreach (var p in new[] { PageInstall, PageInk, PageConvert, PageTouch, PageActivate })
-                p.Visibility = p == page ? Visibility.Visible : Visibility.Collapsed;
+            {
+                if (p != null)
+                    p.Visibility = p == page ? Visibility.Visible : Visibility.Collapsed;
+            }
         }
 
         private void Minimize_Click(object s, RoutedEventArgs e) => WindowState = WindowState.Minimized;