From 5e751ccdbb658211e2763984933c7e4ced72f5f8 Mon Sep 17 00:00:00 2001
From: Dong Bin <14807942+rabbitism@users.noreply.github.com>
Date: Fri, 9 Jan 2026 15:45:00 +0800
Subject: [PATCH] Disable scroll chaining in AutoCompleteBox popup. (#716)

* feat: disable scroll chaining in popup.

* feat: disable scroll chaining in MenuScrollViewer
---
 src/Semi.Avalonia/Controls/AutoCompleteBox.axaml | 3 ++-
 src/Semi.Avalonia/Controls/Menu.axaml            | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/Semi.Avalonia/Controls/AutoCompleteBox.axaml b/src/Semi.Avalonia/Controls/AutoCompleteBox.axaml
index 3b5e1f6..3d0411c 100644
--- a/src/Semi.Avalonia/Controls/AutoCompleteBox.axaml
+++ b/src/Semi.Avalonia/Controls/AutoCompleteBox.axaml
@@ -85,7 +85,8 @@
                                     Foreground="{TemplateBinding Foreground}"
                                     ItemTemplate="{TemplateBinding ItemTemplate}"
                                     ScrollViewer.HorizontalScrollBarVisibility="Auto"
-                                    ScrollViewer.VerticalScrollBarVisibility="Auto" />
+                                    ScrollViewer.VerticalScrollBarVisibility="Auto" 
+                                    ScrollViewer.IsScrollChainingEnabled="False" />
                             </Border>
                         </Popup>
                     </Panel>
diff --git a/src/Semi.Avalonia/Controls/Menu.axaml b/src/Semi.Avalonia/Controls/Menu.axaml
index c8132e6..b181a31 100644
--- a/src/Semi.Avalonia/Controls/Menu.axaml
+++ b/src/Semi.Avalonia/Controls/Menu.axaml
@@ -7,6 +7,7 @@
 
     <ControlTheme x:Key="MenuScrollViewer" TargetType="ScrollViewer">
         <Setter Property="Background" Value="Transparent" />
+        <Setter Property="ScrollViewer.IsScrollChainingEnabled" Value="False" />
         <Setter Property="Template">
             <ControlTemplate TargetType="ScrollViewer">
                 <DockPanel>
@@ -349,7 +350,7 @@
                                 BorderThickness="{DynamicResource MenuFlyoutBorderThickness}"
                                 BoxShadow="{DynamicResource MenuFlyoutBorderBoxShadow}"
                                 CornerRadius="{DynamicResource MenuFlyoutCornerRadius}">
-                                <ScrollViewer Theme="{StaticResource MenuScrollViewer}" CornerRadius="{DynamicResource MenuFlyoutCornerRadius}">
+                                <ScrollViewer Theme="{StaticResource MenuScrollViewer}" IsScrollChainingEnabled="False" CornerRadius="{DynamicResource MenuFlyoutCornerRadius}">
                                     <ItemsPresenter
                                         Name="PART_ItemsPresenter"
                                         Grid.IsSharedSizeScope="True"