From fda13468c49e9ba536f628740ed3ce74391800cf Mon Sep 17 00:00:00 2001
From: leo <longshuang@msn.cn>
Date: Sun, 7 Jul 2024 09:56:22 +0800
Subject: [PATCH] enhance: supports virtualization in sub context menu

---
 src/Resources/Styles.axaml | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/Resources/Styles.axaml b/src/Resources/Styles.axaml
index b19709e7..139e5bd5 100644
--- a/src/Resources/Styles.axaml
+++ b/src/Resources/Styles.axaml
@@ -772,6 +772,7 @@
               <Popup Name="PART_Popup"
                      WindowManagerAddShadowHint="False"
                      Placement="RightEdgeAlignedTop"
+                     MaxHeight="400"
                      IsLightDismissEnabled="False"
                      HorizontalOffset="-4"
                      VerticalOffset="-4"
@@ -793,7 +794,13 @@
                       <ItemsPresenter Name="PART_ItemsPresenter"
                                       ItemsPanel="{TemplateBinding ItemsPanel}"
                                       Margin="{DynamicResource MenuFlyoutScrollerMargin}"
-                                      Grid.IsSharedSizeScope="True" />
+                                      Grid.IsSharedSizeScope="True">
+                        <ItemsPresenter.ItemsPanel>
+                          <ItemsPanelTemplate>
+                            <VirtualizingStackPanel Orientation="Vertical"/>
+                          </ItemsPanelTemplate>
+                        </ItemsPresenter.ItemsPanel>
+                      </ItemsPresenter>
                     </ScrollViewer>
                   </Border>
                 </Grid>