From e4d45fc46d10a558d7193fe48e0a8362e6ad6d17 Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Wed, 12 Feb 2020 08:33:00 +0100
Subject: [PATCH] ISelectionModel implements INotifyPropertyChanged.

This will be needed for monitoring the `AnchorIndex` in order to auto-scroll.
---
 src/Avalonia.Controls/ISelectionModel.cs | 3 ++-
 src/Avalonia.Controls/SelectionModel.cs  | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/Avalonia.Controls/ISelectionModel.cs b/src/Avalonia.Controls/ISelectionModel.cs
index aed21315bb..a939bfdc8c 100644
--- a/src/Avalonia.Controls/ISelectionModel.cs
+++ b/src/Avalonia.Controls/ISelectionModel.cs
@@ -5,10 +5,11 @@
 
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
 
 namespace Avalonia.Controls
 {
-    public interface ISelectionModel
+    public interface ISelectionModel : INotifyPropertyChanged
     {
         IndexPath AnchorIndex { get; set; }
         IndexPath SelectedIndex { get; set; }
diff --git a/src/Avalonia.Controls/SelectionModel.cs b/src/Avalonia.Controls/SelectionModel.cs
index ce8e53c994..325e2e8848 100644
--- a/src/Avalonia.Controls/SelectionModel.cs
+++ b/src/Avalonia.Controls/SelectionModel.cs
@@ -12,7 +12,7 @@ using Avalonia.Controls.Utils;
 
 namespace Avalonia.Controls
 {
-    public class SelectionModel : ISelectionModel, INotifyPropertyChanged, IDisposable
+    public class SelectionModel : ISelectionModel, IDisposable
     {
         private readonly SelectionNode _rootNode;
         private bool _singleSelect;