From 544686b78d99674bf50984ce5e97008a8a3d319a Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Fri, 18 Sep 2020 11:41:04 +0200
Subject: [PATCH] Don't try to SelectAll with single selection.

`Toggle` doesn't mean multiple selection.
---
 src/Avalonia.Controls/Primitives/SelectingItemsControl.cs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/Avalonia.Controls/Primitives/SelectingItemsControl.cs b/src/Avalonia.Controls/Primitives/SelectingItemsControl.cs
index c954f9fd4a..e34b3b145f 100644
--- a/src/Avalonia.Controls/Primitives/SelectingItemsControl.cs
+++ b/src/Avalonia.Controls/Primitives/SelectingItemsControl.cs
@@ -491,8 +491,7 @@ namespace Avalonia.Controls.Primitives
 
                 if (ItemCount > 0 &&
                     Match(keymap.SelectAll) &&
-                    (((SelectionMode & SelectionMode.Multiple) != 0) ||
-                      (SelectionMode & SelectionMode.Toggle) != 0))
+                    SelectionMode.HasFlag(SelectionMode.Multiple))
                 {
                     Selection.SelectAll();
                     e.Handled = true;