From 7c8973ac62d9fe157f25d516429d70592585169b Mon Sep 17 00:00:00 2001
From: v-leafshi <v-leafshi@microsoft.com>
Date: Tue, 25 Nov 2025 11:21:19 +0800
Subject: [PATCH] Fix incorrect logic in CharIsPrintable for UnicodeCategory
 exclusions

---
 .../src/System/ComponentModel/Design/ByteViewer.cs            | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/System.Windows.Forms.Design/src/System/ComponentModel/Design/ByteViewer.cs b/src/System.Windows.Forms.Design/src/System/ComponentModel/Design/ByteViewer.cs
index 6fb23d1c289..2bd0f17047d 100644
--- a/src/System.Windows.Forms.Design/src/System/ComponentModel/Design/ByteViewer.cs
+++ b/src/System.Windows.Forms.Design/src/System/ComponentModel/Design/ByteViewer.cs
@@ -170,11 +170,11 @@ private void DrawClient(Graphics g)
     private static bool CharIsPrintable(char c)
     {
         UnicodeCategory uc = char.GetUnicodeCategory(c);
-        return uc is not UnicodeCategory.Control
+        return uc is not (UnicodeCategory.Control
             or UnicodeCategory.Format
             or UnicodeCategory.LineSeparator
             or UnicodeCategory.ParagraphSeparator
-            or UnicodeCategory.OtherNotAssigned;
+            or UnicodeCategory.OtherNotAssigned);
     }
 
     /// <summary>