From 397d972db8b43ad6c50b1889bdb59d20e54c3085 Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Wed, 24 Jul 2019 23:36:28 +0200
Subject: [PATCH] Auto-select first item on `Reset`.

When a reset is received by `SelectingItemsControl` which has `AlwaysSelect == true`, select the first item if present.

Fixes #2754
---
 src/Avalonia.Controls/Primitives/SelectingItemsControl.cs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Avalonia.Controls/Primitives/SelectingItemsControl.cs b/src/Avalonia.Controls/Primitives/SelectingItemsControl.cs
index 188685f796..c8c15bc079 100644
--- a/src/Avalonia.Controls/Primitives/SelectingItemsControl.cs
+++ b/src/Avalonia.Controls/Primitives/SelectingItemsControl.cs
@@ -333,6 +333,11 @@ namespace Avalonia.Controls.Primitives
                 case NotifyCollectionChangedAction.Move:
                 case NotifyCollectionChangedAction.Reset:
                     SelectedIndex = IndexOf(Items, SelectedItem);
+
+                    if (AlwaysSelected && SelectedIndex == -1 && ItemCount > 0)
+                    {
+                        SelectedIndex = 0;
+                    }
                     break;
             }
         }