From 48a33cc415a7aae627d4bd86f1e265fd4482160f Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Sun, 8 Jan 2017 16:50:25 +0100
Subject: [PATCH] Handle null in MarkupBindingChainException

---
 src/Markup/Avalonia.Markup/Data/MarkupBindingChainException.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Markup/Avalonia.Markup/Data/MarkupBindingChainException.cs b/src/Markup/Avalonia.Markup/Data/MarkupBindingChainException.cs
index dab5756976..51afe1ffbf 100644
--- a/src/Markup/Avalonia.Markup/Data/MarkupBindingChainException.cs
+++ b/src/Markup/Avalonia.Markup/Data/MarkupBindingChainException.cs
@@ -26,7 +26,7 @@ namespace Avalonia.Markup.Data
             _nodes = null;
         }
 
-        public bool HasNodes => _nodes.Count > 0;
+        public bool HasNodes => _nodes?.Count > 0;
         public void AddNode(string node) => _nodes.Add(node);
 
         public void Commit(string expression)