From 04b07b774bf56985c0f55b2484c5d3c1dcf600c9 Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Sat, 16 Jan 2016 15:20:46 +0100
Subject: [PATCH] Allow null DataTemplate.DataType.

---
 src/Markup/Perspex.Markup.Xaml/Templates/DataTemplate.cs | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/Markup/Perspex.Markup.Xaml/Templates/DataTemplate.cs b/src/Markup/Perspex.Markup.Xaml/Templates/DataTemplate.cs
index 37a8f338d5..96e38fd292 100644
--- a/src/Markup/Perspex.Markup.Xaml/Templates/DataTemplate.cs
+++ b/src/Markup/Perspex.Markup.Xaml/Templates/DataTemplate.cs
@@ -20,10 +20,12 @@ namespace Perspex.Markup.Xaml.Templates
         {
             if (DataType == null)
             {
-                throw new InvalidOperationException("DataTemplate must have a DataType.");
+                return true;
+            }
+            else
+            {
+                return DataType.GetTypeInfo().IsAssignableFrom(data.GetType().GetTypeInfo());
             }
-
-            return DataType.GetTypeInfo().IsAssignableFrom(data.GetType().GetTypeInfo());
         }
 
         public IControl Build(object data)