From a830d5b2d42a70acdd3ea3029e0593cc46868bea Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Tue, 1 Oct 2019 12:25:13 +0200
Subject: [PATCH] Don't test tree view item type by comparing GetType().

Fixes #2971.
---
 src/Avalonia.Controls/TreeViewItem.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Avalonia.Controls/TreeViewItem.cs b/src/Avalonia.Controls/TreeViewItem.cs
index e185bc227b..c7fd96b68a 100644
--- a/src/Avalonia.Controls/TreeViewItem.cs
+++ b/src/Avalonia.Controls/TreeViewItem.cs
@@ -173,7 +173,7 @@ namespace Avalonia.Controls
         {
             var result = 0;
 
-            while (logical != null && logical.GetType() != typeof(T))
+            while (logical != null && !(logical is T))
             {
                 ++result;
                 logical = logical.LogicalParent;