From 4c0b82a68d0c56a5b3ffdff53e20dd255fecf6a4 Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Fri, 19 Aug 2016 00:37:39 +0200
Subject: [PATCH] Always use an IList (array) for DataValidationErrors.

It's dangerous to pass a non-collection IEnumerable to an ItemsControl
and will be made illegal at some point.
---
 src/Avalonia.Controls/TextBox.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/Avalonia.Controls/TextBox.cs b/src/Avalonia.Controls/TextBox.cs
index 5552d3d3c5..1003fef85f 100644
--- a/src/Avalonia.Controls/TextBox.cs
+++ b/src/Avalonia.Controls/TextBox.cs
@@ -503,7 +503,9 @@ namespace Avalonia.Controls
         private static IEnumerable<Exception> UnpackException(Exception exception)
         {
             var aggregate = exception as AggregateException;
-            return aggregate == null ? Enumerable.Repeat(exception, 1) : aggregate.InnerExceptions;
+            return aggregate == null ? 
+                (IEnumerable<Exception>)new[] { exception } :
+                aggregate.InnerExceptions;
         }
 
         private int CoerceCaretIndex(int value)