From fa44075d26873d80b6fba5df8492d774fadec589 Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Wed, 20 Apr 2022 17:19:02 +0200
Subject: [PATCH] Make utility methods non-virtual.

Not sure why these method were virtual anyway: any customization should be done by overriding the non-generic `CreateItemContainerGenerator` method.
---
 src/Avalonia.Controls/TreeView.cs     | 2 +-
 src/Avalonia.Controls/TreeViewItem.cs | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Avalonia.Controls/TreeView.cs b/src/Avalonia.Controls/TreeView.cs
index 1d806913dd..b2a188a2ea 100644
--- a/src/Avalonia.Controls/TreeView.cs
+++ b/src/Avalonia.Controls/TreeView.cs
@@ -401,7 +401,7 @@ namespace Avalonia.Controls
         protected virtual ITreeItemContainerGenerator CreateTreeItemContainerGenerator() =>
             CreateTreeItemContainerGenerator<TreeViewItem>();
 
-        protected virtual ITreeItemContainerGenerator CreateTreeItemContainerGenerator<TVItem>() where TVItem: TreeViewItem, new()
+        protected ITreeItemContainerGenerator CreateTreeItemContainerGenerator<TVItem>() where TVItem: TreeViewItem, new()
         {
             return new TreeItemContainerGenerator<TVItem>(
                 this,
diff --git a/src/Avalonia.Controls/TreeViewItem.cs b/src/Avalonia.Controls/TreeViewItem.cs
index a0a3c09942..490b0b3ce3 100644
--- a/src/Avalonia.Controls/TreeViewItem.cs
+++ b/src/Avalonia.Controls/TreeViewItem.cs
@@ -96,7 +96,7 @@ namespace Avalonia.Controls
         protected override IItemContainerGenerator CreateItemContainerGenerator() => CreateTreeItemContainerGenerator<TreeViewItem>();
 
         /// <inheritdoc/>
-        protected virtual ITreeItemContainerGenerator CreateTreeItemContainerGenerator<TVItem>()
+        protected ITreeItemContainerGenerator CreateTreeItemContainerGenerator<TVItem>()
             where TVItem: TreeViewItem, new()
         {
             return new TreeItemContainerGenerator<TVItem>(